<?xml version="1.0"?>
<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xmlns:daml="http://www.daml.org/2001/03/daml+oil#"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:csdgm="http://loki.cae.drexel.edu/~wbs/ontology/2004/08/fgdc-csdgm#"
    xmlns="http://loki.cae.drexel.edu/~wbs/ontology/2004/08/fgdc-csdgm#"
  xml:base="http://loki.cae.drexel.edu/~wbs/ontology/2004/08/fgdc-csdgm">
  <owl:Ontology rdf:about="">
    <rdfs:comment> title- An ontology for Content Standard for Digital Geospatial Metadata (CSDGM). creator- Akm Saiful Islam, Bora Beran, Volkan Yargici and Michael Piasecki. description- This Ontology has been developed for CSDGM of FGDC. The objects of CSDGM are to provide a common set of terminology and definitions for the documentation of digital geospatial data. CSDGM standard establishes the names of data elements and compound elements (groups of data elements) to be used for these purposes, the definitions of these compound elements and data elements, and information about the values that are to be provided for the data elements. Vocabulary terms are declared using OWL language to support RDF applications. publisher- Drexel University . date- 2004-07-15. format - text/xml. language - English</rdfs:comment>
    <owl:versionInfo>version 1.0</owl:versionInfo>
  </owl:Ontology>
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    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Oblique_Line_Latitude"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >2</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
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      <owl:Restriction>
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        >2</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Oblique_Line_Longitude"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:ID="ProjectionReferences"/>
    </rdfs:subClassOf>
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  <owl:Class rdf:ID="Polyconic">
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        <owl:onProperty>
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        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Latitude_of_Projection_Origin"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Sinusoidal">
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      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Security_Classification">
    <rdfs:comment xml:lang="en">name of the handling restrictions on the data set. 
</rdfs:comment>
  </owl:Class>
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      <owl:Restriction>
        <owl:onProperty>
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      </owl:Restriction>
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            <owl:unionOf rdf:parseType="Collection">
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            </owl:unionOf>
          </owl:Class>
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        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
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    </rdfs:subClassOf>
  </owl:Class>
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          <owl:FunctionalProperty rdf:about="#Time_of_Day"/>
        </owl:onProperty>
      </owl:Restriction>
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    <rdfs:subClassOf>
      <owl:Class rdf:about="#Date_Time"/>
    </rdfs:subClassOf>
    <owl:disjointWith>
      <owl:Class rdf:about="#Range_of_Dates_Times"/>
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          <owl:FunctionalProperty rdf:about="#Time_of_Day"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">means of encoding a single date and time. 
</rdfs:comment>
    <owl:disjointWith>
      <owl:Class rdf:about="#Multiple_Dates_Times"/>
    </owl:disjointWith>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Calendar_Date"/>
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        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="HorizontalDatumNames"/>
  <owl:Class rdf:ID="Browse_Graphic_File_Type">
    <rdfs:comment xml:lang="en">graphic file type of a related graphic file. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Point_of_Contact">
    <rdfs:comment xml:lang="en">contact information for an individual or organization that is knowledgeable about the data set. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Browse_Graphic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
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        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasBrowse_Graphic_File_Type"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
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          <owl:FunctionalProperty rdf:about="#Browse_Graphic_File_Description"/>
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        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">a graphic that provides an illustration of the data set. The graphic should include a legend for interpreting the graphic. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Browse_Graphic_File_Name"/>
        </owl:onProperty>
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        >1</owl:cardinality>
      </owl:Restriction>
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  </owl:Class>
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      <owl:Restriction>
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        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Longitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
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        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Latitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Scale_Factor_at_Equator">
    <rdfs:comment xml:lang="en">A multiplier for reducing a distance obtained from a map by computation or scaling to the actual distance along the equator. </rdfs:comment>
    <rdfs:subClassOf rdf:resource="#ProjectionReferences"/>
  </owl:Class>
  <owl:Class rdf:ID="Geographic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Geographic_Coordinate_Units"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">The quantities of latitude and longitude which define the position of a point on the Earth's surface with respect to a reference spheroid.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Longitude_Resolution"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Latitude_Resolution"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Quantitative_Horizontal_Positional_Accuracy_Assessment">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Horizontal_Positional_Accuracy_Value"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Horizontal_Positional_Accuracy_Explanation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en"> numeric value assigned to summarize the accuracy of the horizontal coordinate measurements and the identification of the test that yielded the value. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Metadata_Extensions">
    <rdfs:comment xml:lang="en">a reference to extended elements to the standard which may be defined by a metadata producer or a user community. Extended elements are elements outside the Standard, but needed by the metadata producer. If extended elements are created, they must follow the guidelines in Appendix D, Guidelines for Creating Extended Elements to the Content Standard for Digital Geospatial Metadata. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Profile_Name"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Online_Linkage"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Profile_Name"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Online_Linkage"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Vertical_Coordinate_System_Definition">
    <rdfs:comment xml:lang="en">The reference frame or system from which vertical distances (altitudes or depths) are measured. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasAltitudeSystemDefinition"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasDepthSystemDefinition"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasAltitudeSystemDefinition"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
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        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasDepthSystemDefinition"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Address_Type">
    <rdfs:comment xml:lang="en"> the information provided by the address. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Equidistant_Conic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Latitude_of_Projection_Origin"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
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        <owl:onProperty>
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      </owl:Restriction>
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    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
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      <owl:Restriction>
        <owl:onProperty>
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      </owl:Restriction>
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          <owl:DatatypeProperty rdf:about="#Technical_Prerequisites"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasDistributor"/>
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      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Custom_Order_Process"/>
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      </owl:Restriction>
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    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
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        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Resource_Description"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
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        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Resource_Description"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="G"/>
  <owl:Class rdf:ID="AltitudeDatumNames">
    <rdfs:comment xml:lang="en">The identification given to the surface taken as the surface of reference from which altitudes are measured.</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Map_Projection_Parameters">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Straight-Vertical_Longitude_from_Pole"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">A complete parameter set of the projection that was used for the data set. The information provided shall include the names of the parameters and values used for the data set that describe the mathematical relationship between the Earth and the plane or developable surface for the projection. </rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Landsat_Number"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Scale_Factor_at_Center_Line"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Longitude_of_Projection_Center"/>
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        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
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      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
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        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Height_of_Perspective_Point_Above_Surface"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Latitude_of_Projection_Center"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Scale_Factor_at_Central_Meridian"/>
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        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
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      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
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        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Latitude_of_Projection_Origin"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Local">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Local_Georeference_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">A description of any coordinate system that is not aligned with the surface of the Earth. </rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Local_Description"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Point_and_Vector_Object_Information">
    <rdfs:comment xml:lang="en">information about VPF point and vector objects 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Class rdf:ID="Object_Information"/>
    </rdfs:subClassOf>
    <owl:disjointWith>
      <owl:Class rdf:about="#Raster_Object_Information"/>
    </owl:disjointWith>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasTerms_Description"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Description_Information"/>
  <owl:Class rdf:ID="HorizontalCoordPlanar">
    <rdfs:subClassOf>
      <owl:Class rdf:ID="HorizontalCoord"/>
    </rdfs:subClassOf>
    <owl:disjointWith>
      <owl:Class rdf:about="#HorizontalCoordLocal"/>
    </owl:disjointWith>
    <owl:disjointWith>
      <owl:Class rdf:about="#HorizontalCoordGeographic"/>
    </owl:disjointWith>
  </owl:Class>
  <owl:Class rdf:ID="Vertical_Positional_Accuracy">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasQuantitative_Vertical_Positional_Accuracy_Assessment"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Vertical_Positional_Accuracy_Report"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Computer_Contact_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasDialup_Instructions"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasNetwork_Address"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Albers_Conical_Equal_Area">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:allValuesFrom>
          <owl:Class rdf:about="#Standard_Parallel"/>
        </owl:allValuesFrom>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Latitude_of_Projection_Origin"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >2</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Quantitative_Attribute_Accuracy_Assessment">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Accuracy_Explanation"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Accuracy_Value"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">a value assigned to summarize the accuracy of the identification of the entities and assignments of values in the data set and the identification of the test that yielded the value. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Digital_Form">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasDigital_Transfer_Option"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasDigital_Transfer_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Transverse_Mercator">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Scale_Factor_at_Central_Meridian"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Latitude_of_Projection_Origin"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Available_Time_Period">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasTime_Period_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Keywords">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasPlace"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasTemporal"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">words or phrases summarizing an aspect of the data set. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasTheme"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasStratum"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Maintenance_and_Update_Frequency">
    <rdfs:comment xml:lang="en"> the frequency with which changes and additions are made to the data set after the initial data set is completed. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Map_Projection_Name">
    <rdfs:comment xml:lang="en">Units of measure used for the latitude and longitude values.</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Metadata">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasSpatial_Reference_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasDistribution_Information"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasSpatial_Data_Organization_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasEntity_and_Attribute_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasSpatial_Data_Organization_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasIdentification_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasEntity_and_Attribute_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasData_Quality_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasSpatial_Reference_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasData_Quality_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">data about the content, quality, condition, and other characteristics of data</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Date_Time">
    <importantNote rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Abstract Class</importantNote>
  </owl:Class>
  <owl:Class rdf:ID="Contact_Address">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Address"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#State_or_Province"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#City"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Country"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasAddress_Type"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Country"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Postal_Code"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">the address for the organization or individual. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Address"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="VPF_Terms_Description">
    <rdfs:comment xml:lang="en">point and vector object information using the terminology and concepts from Department of Defense, 1992, Vector Product Format (MIL-STD-600006): Philadelphia, Department of Defense, Defense Printing Service Detachment Office. (Note that this reference to the VPF is used ONLY to provide a set of terminology for the point and vector objects.) 
</rdfs:comment>
    <owl:disjointWith>
      <owl:Class rdf:about="#SDTS_Terms_Description"/>
    </owl:disjointWith>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasVPF_Point_and_Vector_Object_Information"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#VPF_Topology_Level"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:ID="Terms_Description"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Larger_Work_Citation">
    <rdfs:comment xml:lang="en">the information identifying a larger work in which the data set is included. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasCitation_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Attribute_Accuracy">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasQuantitative_Attribute_Accuracy_Assessment"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Accuracy_Report"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Contact_Primary">
    <importantNote xml:lang="en">Its an Abstract Class and instances shoud not be created directly</importantNote>
  </owl:Class>
  <owl:Class rdf:ID="State_Plane_Coordinate_System">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#SPCS_Zone_Identifier"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">SPCS is a plane-rectangular coordinate system established for each state in the United States by the National Geodetic Survey.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:allValuesFrom>
          <owl:Class>
            <owl:unionOf rdf:parseType="Collection">
              <owl:Class rdf:about="#Lambert_Conformal_Conic"/>
              <owl:Class rdf:about="#Transverse_Mercator"/>
              <owl:Class rdf:about="#Oblique_Mercator"/>
              <owl:Class rdf:about="#Polyconic"/>
            </owl:unionOf>
          </owl:Class>
        </owl:allValuesFrom>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:ID="Coordinate_System"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="_Unrepresentable_Domain">
    <rdfs:subClassOf>
      <owl:Class rdf:ID="Attribute_Domain"/>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">description of the values and reasons why they cannot be represented. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Equirectangular">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:allValuesFrom>
          <owl:Class rdf:about="#Standard_Parallel"/>
        </owl:allValuesFrom>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Process_Contact">
    <rdfs:comment xml:lang="en"> the party responsible for the processing step information. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasContact_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="SDTS_Terms_Description">
    <owl:disjointWith rdf:resource="#VPF_Terms_Description"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#SDTS_Point_and_Vector_Object_Type"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Terms_Description"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Point_and_Vector_Object_Count"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Point_and_Vector_Object_Count"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">point and vector object information using the terminology and concepts from "Spatial Data Concepts," which is Chapter 2 of Part 1 in Department of Commerce, 1992, Spatial Data Transfer Standard (SDTS) (Federal Information Processing Standard 173): Washington, Department of Commerce, National Institute of Standards and Technology. (Note that this reference to the SDTS is used ONLY to provide a set of terminology for the point and vector objects.) 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Overview_Description">
    <rdfs:comment xml:lang="en">summary of, and citation to detailed description of, the information content of the data set. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Entity_and_Attribute_Detail_Citation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Description_Information"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Entity_and_Attribute_Overview"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Azimuthal_Equidistant">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Latitude_of_Projection_Origin"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Recording_Format"/>
  <owl:Class rdf:ID="Stereographic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Longitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Latitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Spatial_Reference_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasHorizontal_Coordinate_System_Definition"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasVertical_Coordinate_System_Definition"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasVertical_Coordinate_System_Definition"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasHorizontal_Coordinate_System_Definition"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="AltitudeDistanceUnits"/>
  <owl:Class rdf:ID="Codeset_Domain">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Codeset_Name"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Codeset_Source"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Attribute_Domain"/>
    <rdfs:comment xml:lang="en">reference to a standard or list which contains the members of an established set of valid values. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Citation_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Title"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasSeries_Information"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasPublication_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Other_Citation_Details"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Geospatial_Data_Presentation_Form"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasLarger_Work_Citation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Other_Citation_Details"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Originator"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasSeries_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Publication_Time"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:maxCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasPublication_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Edition"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Edition"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Publication_Time"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Publication_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Online_Linkage"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">information to be used to reference the data set. </rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasLarger_Work_Citation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Geospatial_Data_Presentation_Form"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Format_Name"/>
  <owl:Class rdf:ID="DepthDatumNames">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >The identification given to surface of reference from which depths are measured. </rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Universal_Polar_Stereographic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#UPS_Zone_Identifier"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">UPS is a grid system based on the polar stereographic projection, applied to the Earth's polar regions north of 84 degrees north and south of 80 degrees south.</rdfs:comment>
    <rdfs:subClassOf rdf:resource="#Coordinate_System"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:allValuesFrom>
          <owl:Class rdf:about="#Polar_Stereographic"/>
        </owl:allValuesFrom>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Series_Information">
    <rdfs:comment xml:lang="en">the identification of the series publication of which the data set is a part</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Issue_Identification"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Series_Name"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="G-Ring_Ring">
    <owl:disjointWith>
      <owl:Class rdf:about="#G-Ring_Points"/>
    </owl:disjointWith>
    <rdfs:subClassOf rdf:resource="#G"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#G-Ring"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Temporal">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Theme_Keyword"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">time period(s) characterized by the data set. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Temporal_Keyword_Thesaurus"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Metadata_Contact">
    <rdfs:comment xml:lang="en">the party responsible for the metadata information.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasContact_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Offline_Option">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasRecording_Capacity"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Compatibility_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Detailed_Description">
    <rdfs:subClassOf rdf:resource="#Description_Information"/>
    <rdfs:comment xml:lang="en">description of the entities, attributes, attribute values, and related characteristics encoded in the data set. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Entity_Type">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Entity_Type_Definition"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Entity_Type_Definition_Source"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en"> the definition and description of a set into which similar entity instances are classified. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Entity_Type_Label"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Modified_Stereographic_for_Alaska">
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Currentness_Reference">
    <rdfs:comment xml:lang="en"> the basis on which the time period of content information is determined. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Distributor">
    <rdfs:comment xml:lang="en">the party from whom the data set may be obtained</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasContact_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="PlanarDistanceUnits">
    <rdfs:comment xml:lang="en">Units of measure used for distances</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Source_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Source_Scale_Denominator"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Source_Citation_Abbreviation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasSource_Citation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Source_Contribution"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Source_Scale_Denominator"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">list of sources and a short discussion of the information contributed by each. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasSource_Time_Period_of_Content"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasType_of_Source_Media"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Lineage">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasProcess_Step"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasSource_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en"> information about the events, parameters, and source data which constructed the data set, and information about the responsible parties. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Range_of_Dates_Times">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Ending_Time"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <owl:disjointWith>
      <owl:Class rdf:about="#Multiple_Dates_Times"/>
    </owl:disjointWith>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Beginning_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">means of encoding a range of dates and times</rdfs:comment>
    <rdfs:subClassOf rdf:resource="#Date_Time"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Ending_Time"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Beginning_Time"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Ending_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <owl:disjointWith rdf:resource="#Single_Date_Time"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Beginning_Time"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="ARC_Coordinate_System">
    <rdfs:comment xml:lang="en">The Equal Arc-second Coordinate System, a plane- rectangular coordinate system established in Department of Defense, 1990, Military specification ARC Digitized Raster Graphics (ADRG) (MIL-A-89007): Philadelphia, Department of Defense, Defense Printing Service Detachment Office.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#ARC_System_Zone_Identifier"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:allValuesFrom>
          <owl:Class>
            <owl:unionOf rdf:parseType="Collection">
              <owl:Class rdf:about="#Equirectangular"/>
              <owl:Class rdf:about="#Azimuthal_Equidistant"/>
            </owl:unionOf>
          </owl:Class>
        </owl:allValuesFrom>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Coordinate_System"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Process_Step">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Source_Produced_Citation_Abbreviation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Source_Used_Citation_Abbreviation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Process_Time"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Process_Time"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Process_Description"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Process_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">information about a single event. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Multiple_Dates_Times">
    <rdfs:comment xml:lang="en">means of encoding multiple individual dates and times. 
</rdfs:comment>
    <owl:disjointWith rdf:resource="#Range_of_Dates_Times"/>
    <rdfs:subClassOf rdf:resource="#Date_Time"/>
    <owl:disjointWith rdf:resource="#Single_Date_Time"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >2</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasSingle_Date_Time"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Coordinate_Representation">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Abscissa_Resolution"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">The method of encoding the position of a point by measuring its distance from perpendicular reference axes (the "coordinate pair" and "row and column" methods).</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Ordinate_Resolution"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:ID="RepresentationMethods"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Standard_Order_Process">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasDigital_Form"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Ordering_Instructions"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Non-digital_Form"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Fees"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Turnaround"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Space_Oblique_Mercator_Landsat">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Landsat_Number"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Path_Number"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Place_Keyword_Thesaurus">
    <rdfs:comment xml:lang="en"> reference to a formally registered thesaurus or a similar authoritative source of place keywords.</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Type_of_Source_Media">
    <rdfs:comment xml:lang="en">the medium of the source data set. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Attribute_Value_Accuracy_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Attribute_Value_Accuracy_Explanation"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Attribute_Value_Accuracy"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en"> an assessment of the accuracy of the assignment of attribute values. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Time_Period_of_Content">
    <rdfs:comment xml:lang="en"> time periods for which the data set corresponds to the currentness reference. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasTime_Period_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Horizontal_Coordinate_System_Definition">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasGeographic"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasGeodetic_Model"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasGeodetic_Model"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">The reference frame or system from which linear or angular quantities are measured and assigned to the position that a point occupies.</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Altitude_System_Definition">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Altitude_Resolution"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Altitude_Encoding_Method"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Altitude_Datum_Name"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">The reference frame or system from which altitudes (elevations) are measured. The term altitude is used instead of the common term elevation to conform to the terminology in Federal Information Processing Standards 70-1 and 173.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Altitude_Distance_Units"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Map_Projection">
    <rdfs:comment xml:lang="en">The systematic representation of all or part of the surface of the Earth on a plane or developable surface. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Class rdf:ID="PlanarSystem"/>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasMapProjectionName"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#explanationOfProjectionTechnique"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Dialup_Instructions">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Number_StopBits"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Highest_BPS"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Number_DataBits"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Lowest_BPS"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Dialup_Telephone"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Dialup_File_Name"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Compression_Support"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Parity"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Highest_BPS"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Depth_System_Definition">
    <rdfs:comment xml:lang="en">The reference frame or system from which depths are measured.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Depth_Encoding_Method"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Depth_Resolution"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Depth_Datum_Name"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Depth_Distance_Units"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Status">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Progress"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">the state of and maintenance information for the data set. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasMaintenance_and_Update_Frequency"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Spatial_Domain">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasData_Set_G-Polygon"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">the geographic areal domain of the data set. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Metadata_Security_Classification">
    <rdfs:comment xml:lang="en">name of the handling restrictions on the metadata. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Source_Citation">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasCitation_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">reference for a source data set. 

</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Contact_Person_Primary">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Contact_Organization"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Contact_Organization"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Person"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <owl:disjointWith>
      <owl:Class rdf:about="#Contact_Organization_Primary"/>
    </owl:disjointWith>
    <rdfs:comment xml:lang="en">the person, and the affiliation of the person, associated with the data set. Used in cases where the association of the person to the data set is more significant than the association of the organization to the data set. 
</rdfs:comment>
    <rdfs:subClassOf rdf:resource="#Contact_Primary"/>
  </owl:Class>
  <owl:Class rdf:ID="HorizontalCoordLocal">
    <rdfs:subClassOf rdf:resource="#HorizontalCoord"/>
    <owl:disjointWith>
      <owl:Class rdf:about="#HorizontalCoordGeographic"/>
    </owl:disjointWith>
    <owl:disjointWith rdf:resource="#HorizontalCoordPlanar"/>
  </owl:Class>
  <owl:Class rdf:ID="Distance_and_Bearing_Representation">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Distance_Resolution"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Bearing_Resolution"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Bearing_Reference_Direction"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#RepresentationMethods"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Bearing_Units"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Bearing_Reference_Meridian"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">A method of encoding the position of a point by measuring its distance and direction (azimuth angle)</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Metadata_Security_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Metadata_Security_Handling_Description"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Metadata_Security_Classification_System"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasMetadata_Security_Classification"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Positional_Accuracy">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasHorizontal_Positional_Accuracy"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasHorizontal_Positional_Accuracy"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasVertical_Positional_Accuracy"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasVertical_Positional_Accuracy"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">an assessment of the accuracy of the positions of spatial objects</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Other_Grid_Systems_Definition">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Coordinate_System"/>
    <rdfs:comment xml:lang="en">A complete description of a grid system, not defined elsewhere in this standard, that was used for the data set. The information provided shall include the name of the grid system, the names of the parameters and values used for the data set, and the citation of the specification for the algorithms that describe the mathematical relationship between the Earth and the coordinates of the grid system.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#UPS_Zone_Identifier"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#SPCS_Zone_Identifier"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#UTM_Zone_Number"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#ARC_System_Zone_Identifier"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Robinson">
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Map_Projection_Technique"/>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Longitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Digital_Transfer_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#File_Decompression_Technique"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Format_Specification"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Format_Version_Number"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Transfer_Size"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Format_Version_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#File_Decompression_Technique"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasFormat_Name"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Format_Information_Content"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Range_Domain">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Units_of_Measure"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">the minimum and maximum values of a continuum of valid values. 
</rdfs:comment>
    <rdfs:subClassOf rdf:resource="#Attribute_Domain"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Range_Domain_Maximum"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Units_of_Measure"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Measurement_Resolution"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Measurement_Resolution"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasAttribute"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Range_Domain_Minimum"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Network_Address">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Network_Resource_Name"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Security_Information">
    <rdfs:comment xml:lang="en"> handling restrictions imposed on the data set because of national security, privacy, or other concerns. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasSecurity_Classification"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Security_Classification_System"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Security_Handling_Description"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Description">
    <rdfs:comment xml:lang="en">a characterization of the data set, including its intended use and limitations.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Purpose"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Abstract"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Supplemental_Information"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Supplemental_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Data_Set_G-Polygon_Outer_G-Ring">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasG"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">the closed nonintersecting boundary of an interior area. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Theme">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Theme_Keyword_Thesaurus"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">subjects covered by the data set (for a list of some commonly-used thesauri, see Part IV: Subject/index term sources in Network Development and MARC Standards Office, 1988, USMARC code list for relators, sources, and description conventions: Washington, Library of Congress). 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Theme_Keyword_Thesaurus"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Map_Projection_Technique">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#False_Northing"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">The systematic representation of all or part of the surface of the Earth on a plane or developable surface. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#False_Easting"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Count">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Row_Count"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Column_Count"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Vertical_Count"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Vertical_Count"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Place">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasPublication_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Place_Keyword"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">geographic locations characterized by the data set. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Geodetic_Model">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Denominator_of_Flattening_Ratio"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">Parameters for the shape of the earth. </rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Ellipsoid_Name"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#HorizontalDatumName"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Semi-major_Axis"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Metadata_Reference_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Time_Convention"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Time_Convention"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Future_Review_Date"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Metadata_Review_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Metadata_Review_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Future_Review_Date"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Use_Constraints"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Access_Constraints"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Standard_Name"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Use_Constraints"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Metadata_Standard_Version"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasMetadata_Security_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasMetadata_Extensions"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Metadata_Access_Constraints"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasMetadata_Security_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Online_Option">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Access_Instructions"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasComputer_Contact_Information"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Online_Computer_and_Operating_System"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Planar">
    <rdfs:comment xml:lang="en">The quantities of distances, or distances and angles, which define the position of a point on a reference plane to which the surface of the Earth has been projected. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasPlanarSystem"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasPlanarCoordinateInformation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Data_Set_G-Polygon">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasData_Set_G-Polygon_Outer_G-Ring"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Oblique_Mercator">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Scale_Factor_at_Center_Line"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:allValuesFrom>
          <owl:Class>
            <owl:unionOf rdf:parseType="Collection">
              <owl:Class rdf:about="#Oblique_Line_Azimuth"/>
              <owl:Class rdf:about="#Oblique_Line_Point"/>
            </owl:unionOf>
          </owl:Class>
        </owl:allValuesFrom>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Latitude_of_Projection_Origin"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Map_Projection_Technique"/>
  </owl:Class>
  <owl:Class rdf:ID="Lambert_Conformal_Conic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:allValuesFrom>
          <owl:Class rdf:about="#Standard_Parallel"/>
        </owl:allValuesFrom>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >2</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Map_Projection_Technique"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Latitude_of_Projection_Origin"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Local_Planar">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Local_Planar_Description"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Local_Planar_Georeference_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#PlanarSystem"/>
    <rdfs:comment xml:lang="en">Any right-handed planar coordinate system of which the z-axis coincides with a plumb line through the origin that locally is aligned with the surface of the Earth.</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Attribute_Domain_Values">
    <rdfs:comment xml:lang="en">the valid values that can be assigned for an attribute. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasAttribute_Domain"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="EllipsoidNames"/>
  <owl:Class rdf:ID="HorizontalCoordGeographic">
    <owl:disjointWith rdf:resource="#HorizontalCoordPlanar"/>
    <rdfs:subClassOf rdf:resource="#HorizontalCoord"/>
    <owl:disjointWith rdf:resource="#HorizontalCoordLocal"/>
  </owl:Class>
  <owl:Class rdf:ID="Identification_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasPoint_of_Contact"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasSecurity_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasCross_Reference"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Use_Constraints"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Native_Data_Set_Environment"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasCitation"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Data_Set_Credit"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasTime_Period_of_Content"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en"> basic information about the data set</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasSpatial_Domain"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasDescription"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Data_Set_Credit"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasBrowse_Graphic"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasStatus"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasPoint_of_Contact"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasSecurity_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasKeywords"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Access_Constraints"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Native_Data_Set_Environment"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Horizontal_Positional_Accuracy">
    <rdfs:comment xml:lang="en">an estimate of accuracy of the horizontal positions of the spatial objects. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasQuantitative_Horizontal_Positional_Accuracy_Assessment"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Horizontal_Positional_Accuracy_Report"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Attribute">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Attribute_Definition_Source"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Attribute_Definition"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en"> a defined characteristic of an entity.</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Measurement_Frequency"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Beginning_Date_of_Attribute_Values"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Ending_Date_of_Attribute_Values"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasAttribute_Domain_Values"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Measurement_Frequency"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasAttribute_Value_Accuracy_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasAttribute_Value_Accuracy_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Attribute_Label"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Oblique_Line_Azimuth">
    <rdfs:subClassOf rdf:resource="#ProjectionReferences"/>
    <rdfs:comment xml:lang="en">Method used to describe the line along which an oblique mercator map projection is centered using the map projection origin and an azimuth. </rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Azimuthal_Angle"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Azimuth_Measure_Point_Longitude"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Enumerated_Domain">
    <rdfs:subClassOf rdf:resource="#Attribute_Domain"/>
    <rdfs:comment xml:lang="en">the members of an established set of valid values. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Enumerated_Domain_Value"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Enumerated_Domain_Value_Definition_Source"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasAttribute"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Enumerated_Domain_Value_Definition"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Spatial_Data_Organization_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Direct_Spatial_Reference_Method"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Direct_Spatial_Reference_Method"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Indirect_Spatial_Reference"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasObject_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Indirect_Spatial_Reference"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasObject_Information"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Miller_Cylindrical">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Map_Projection_Technique"/>
  </owl:Class>
  <owl:Class rdf:ID="Ortographic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Latitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Map_Projection_Technique"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Longitude_of_Projection_Center"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Source_Time_Period_of_Content">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Source_Currentness_Reference"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasTime_Period_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">time period(s) for which the source data set corresponds to the ground. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Bounding_Coordinates">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#North_Bounding_Coordinate"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#West_Bounding_Coordinate"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">the limits of coverage of a data set expressed by latitude and longitude values in the order western-most, eastern-most, northern-most, and southern-most. For data sets that include a complete band of latitude around the earth, the West Bounding Coordinate shall be assigned the value -180.0, and the East Bounding Coordinate shall be assigned the value 180.0 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#East_Bounding_Coordinate"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#South_Bounding_Coordinate"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Contact_Information">
    <rdfs:comment xml:lang="en"> the person, and the affiliation of the person, associated with the data set. Used in cases where the association of the person to the data set is more significant than the association of the organization to the data set</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Hours_of_Service"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_TDD_TTY_Telephone"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Voice_Telephone"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Instructions"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Facsimile_Telephone"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasContact_Address"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Instructions"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Position"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Position"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Hours_of_Service"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Electronic_Mail_Address"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Data_Quality_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Logical_Consistency_Report"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Cloud_Cover"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasPositional_Accuracy"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasLineage"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasAttribute_Accuracy"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Completeness_Report"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasPositional_Accuracy"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Cloud_Cover"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasAttribute_Accuracy"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="General_Vertical_Near-sided_Perspective">
    <rdfs:subClassOf rdf:resource="#Map_Projection_Technique"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Height_of_Perspective_Point_Above_Surface"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Longitude_of_Projection_Center"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Latitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Polar_Stereographic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Map_Projection_Technique"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Straight-Vertical_Longitude_from_Pole"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:allValuesFrom>
          <owl:Class>
            <owl:unionOf rdf:parseType="Collection">
              <owl:Class rdf:about="#Standard_Parallel"/>
              <owl:Class rdf:about="#Scale_Factor_at_Projection_Origin"/>
            </owl:unionOf>
          </owl:Class>
        </owl:allValuesFrom>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="VPF_Point_and_Vector_Object_Information">
    <rdfs:comment xml:lang="en"> name of point and vector spatial objects used to locate zero-, one-, and two-dimensional spatial locations in the data set. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#VPF_Point_and_Vector_Object_Type"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Stratum">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Stratum_Keyword_Thesaurus"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">layered, vertical locations characterized by the data set. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Stratum_Keyword"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Scale_Factor_at_Projection_Origin">
    <rdfs:subClassOf rdf:resource="#ProjectionReferences"/>
    <rdfs:comment xml:lang="en">A multiplier for reducing a distance obtained from a map by computation or scaling to the actual distance at the projection origin. </rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Universal_Transverse_Mercator">
    <rdfs:comment xml:lang="en">UTM is a grid system based on the transverse mercator projection, applied between latitudes 84 degrees north and 80 degrees south on the Earth's surface. </rdfs:comment>
    <rdfs:subClassOf rdf:resource="#Coordinate_System"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#UTM_Zone_Number"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#Projection_References"/>
        </owl:onProperty>
        <owl:allValuesFrom rdf:resource="#Transverse_Mercator"/>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Standard_Parallel">
    <rdfs:subClassOf rdf:resource="#ProjectionReferences"/>
    <rdfs:comment xml:lang="en">Line of constant latitude at which the surface of the Earth and the plane or developable surface intersect.</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Recording_Capacity">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Recording_Density"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasRecording_Format"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Recording_Density_Units"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="G-Ring_Points">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >4</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasG-RingPoint"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <owl:disjointWith rdf:resource="#G-Ring_Ring"/>
    <rdfs:subClassOf rdf:resource="#G"/>
  </owl:Class>
  <owl:Class rdf:ID="Raster_Object_Information">
    <owl:disjointWith rdf:resource="#Point_and_Vector_Object_Information"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasCount"/>
        </owl:onProperty>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasCount"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">the types and numbers of raster spatial objects in the data set</rdfs:comment>
    <rdfs:subClassOf rdf:resource="#Object_Information"/>
  </owl:Class>
  <owl:Class rdf:ID="Cross_Reference">
    <rdfs:comment xml:lang="en"> information about other, related data sets that are likely to be of interest. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasCitation_Information"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Offline_Media"/>
  <owl:Class rdf:ID="Contact_Organization_Primary">
    <owl:disjointWith rdf:resource="#Contact_Person_Primary"/>
    <rdfs:comment xml:lang="en">the organization, and the member of the organization, associated with the data set. Used in cases where the association of the organization to the data set is more significant than the association of the person to the data set. 
</rdfs:comment>
    <rdfs:subClassOf rdf:resource="#Contact_Primary"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Person"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Contact_Organization"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:maxCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:maxCardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Contact_Person"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="G-Ring_Point">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#G-Ring_Longitude"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">a single geographic location</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#G-Ring_Latitude"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="van_der_Grinten">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Longitude_of_Central_Meridian"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Map_Projection_Technique"/>
  </owl:Class>
  <owl:Class rdf:ID="Publication_Information">
    <rdfs:comment xml:lang="en"> publication details for published data sets</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Publication_Place"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Publisher"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Quantitative_Vertical_Positional_Accuracy_Assessment">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Vertical_Positional_Accuracy_Value"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">numeric value assigned to summarize the accuracy of vertical coordinate measurements and the identification of the test that yielded the value. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Vertical_Positional_Accuracy_Explanation"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Data_Set_G-Polygon_Exclusion_G-Ring">
    <rdfs:comment xml:lang="en"> the closed nonintersecting boundary of a void area (or "hole" in an interior area). 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasG"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Citation">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasCitation_Information"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">information to be used to reference the data set. 
</rdfs:comment>
  </owl:Class>
  <owl:Class rdf:ID="Gnomonic">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Longitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#Latitude_of_Projection_Center"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf rdf:resource="#Map_Projection_Technique"/>
  </owl:Class>
  <owl:Class rdf:ID="Time_Period_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasCurrentness_Reference"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Entity_and_Attribute_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasDescription_Information"/>
        </owl:onProperty>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:minCardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Planar_Coordinate_Information">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#usesRepresentationMethod"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Planar_Coordinate_Encoding_Method"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:comment xml:lang="en">Information about the coordinate system developed on the planar surface. 
</rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#PlanarDistanceUnit"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Grid_Coordinate_System">
    <rdfs:comment xml:lang="en">A plane-rectangular coordinate system usually based on, and mathematically adjusted to, a map projection so that geographic positions can be readily transformed to and from plane coordinates.</rdfs:comment>
    <rdfs:subClassOf rdf:resource="#PlanarSystem"/>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty>
          <owl:FunctionalProperty rdf:about="#hasCoordinateSystem"/>
        </owl:onProperty>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</owl:cardinality>
        <owl:onProperty>
          <owl:DatatypeProperty rdf:about="#Grid_Coordinate_System_Name"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Digital_Transfer_Option">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasOffline_Option"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:minCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</owl:minCardinality>
        <owl:onProperty>
          <owl:ObjectProperty rdf:about="#hasOnline_Option"/>
        </owl:onProperty>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:ObjectProperty rdf:ID="hasG-RingPoint">
    <rdfs:range rdf:resource="#G-Ring_Point"/>
    <rdfs:domain rdf:resource="#G-Ring_Points"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasRecording_Format">
    <rdfs:range rdf:resource="#Recording_Format"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasProcess_Step">
    <rdfs:domain rdf:resource="#Lineage"/>
    <rdfs:range rdf:resource="#Process_Step"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasAttribute">
    <rdfs:range rdf:resource="#Attribute"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasAltitudeSystemDefinition">
    <rdfs:range rdf:resource="#Altitude_System_Definition"/>
    <rdfs:domain rdf:resource="#Vertical_Coordinate_System_Definition"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasContact_Information">
    <rdfs:range rdf:resource="#Contact_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasComputer_Contact_Information">
    <rdfs:range rdf:resource="#Computer_Contact_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasStratum">
    <rdfs:range rdf:resource="#Stratum"/>
    <rdfs:domain rdf:resource="#Keywords"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDigital_Transfer_Option">
    <rdfs:range rdf:resource="#Digital_Transfer_Option"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasAttribute_Domain_Values">
    <rdfs:domain rdf:resource="#Attribute"/>
    <rdfs:range rdf:resource="#Attribute_Domain_Values"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDistribution_Liability">
    <rdfs:domain rdf:resource="#Distribution_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasHorizontal_Positional_Accuracy">
    <rdfs:range rdf:resource="#Horizontal_Positional_Accuracy"/>
    <rdfs:domain rdf:resource="#Positional_Accuracy"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasOnline_Option">
    <rdfs:range rdf:resource="#Online_Option"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasStandard_Order_Process">
    <rdfs:domain rdf:resource="#Distribution_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasGeographic">
    <rdfs:range rdf:resource="#HorizontalCoord"/>
    <rdfs:domain rdf:resource="#Horizontal_Coordinate_System_Definition"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasPositional_Accuracy">
    <rdfs:range rdf:resource="#Positional_Accuracy"/>
    <rdfs:domain rdf:resource="#Data_Quality_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasContact_Address">
    <rdfs:range rdf:resource="#Contact_Address"/>
    <rdfs:domain rdf:resource="#Contact_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasG">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#G"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasData_Set_G-Polygon">
    <rdfs:domain rdf:resource="#Spatial_Domain"/>
    <rdfs:range rdf:resource="#Data_Set_G-Polygon"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasData_Set_G-Polygon_Outer_G-Ring">
    <rdfs:range rdf:resource="#Data_Set_G-Polygon_Outer_G-Ring"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Data_Set_G-Polygon"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasIdentification_Information">
    <rdfs:domain rdf:resource="#Metadata"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#Identification_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDescription_Information">
    <rdfs:range rdf:resource="#Description_Information"/>
    <rdfs:domain rdf:resource="#Entity_and_Attribute_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasMetadata_Security_Classification">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Metadata_Security_Information"/>
    <rdfs:range rdf:resource="#Metadata_Security_Classification"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasHorizontal_Coordinate_System_Definition">
    <rdfs:domain rdf:resource="#Spatial_Reference_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#Horizontal_Coordinate_System_Definition"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasQuantitative_Vertical_Positional_Accuracy_Assessment">
    <rdfs:domain rdf:resource="#Vertical_Positional_Accuracy"/>
    <rdfs:range rdf:resource="#Quantitative_Vertical_Positional_Accuracy_Assessment"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasSecurity_Classification">
    <rdfs:range rdf:resource="#Security_Classification"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Security_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasOffline_Option">
    <rdfs:range rdf:resource="#Offline_Option"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDetailed_Description">
    <rdfs:range rdf:resource="#Detailed_Description"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasMetadata_Extensions">
    <rdfs:range rdf:resource="#Metadata_Extensions"/>
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="Projection_References">
    <rdfs:range rdf:resource="#ProjectionReferences"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDialup_Instructions">
    <rdfs:range rdf:resource="#Dialup_Instructions"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="Depth_Distance_Units">
    <rdfs:domain rdf:resource="#Depth_System_Definition"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#AltitudeDistanceUnits"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasPlanarCoord">
    <rdfs:range rdf:resource="#Planar"/>
    <rdfs:domain rdf:resource="#HorizontalCoordPlanar"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasSource_Information">
    <rdfs:domain rdf:resource="#Lineage"/>
    <rdfs:range rdf:resource="#Source_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasSource_Citation">
    <rdfs:domain rdf:resource="#Source_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#Source_Citation"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasAvailable_Time_Period">
    <rdfs:domain rdf:resource="#Distribution_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasTheme">
    <rdfs:range rdf:resource="#Theme"/>
    <rdfs:domain rdf:resource="#Keywords"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasSpatial_Reference_Information">
    <rdfs:domain rdf:resource="#Metadata"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="Altitude_Distance_Units">
    <rdfs:comment xml:lang="en">Units in which altitudes are recorded.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#AltitudeDistanceUnits"/>
    <rdfs:domain rdf:resource="#Altitude_System_Definition"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasSeries_Information">
    <rdfs:range rdf:resource="#Series_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Citation_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasFormat_Name">
    <rdfs:range rdf:resource="#Format_Name"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasEntity_and_Attribute_Information">
    <rdfs:domain rdf:resource="#Metadata"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasSingle_Date_Time">
    <rdfs:domain rdf:resource="#Multiple_Dates_Times"/>
    <rdfs:range rdf:resource="#Single_Date_Time"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasPoint_of_Contact">
    <rdfs:range rdf:resource="#Point_of_Contact"/>
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasPlace_Keyword_Thesaurus">
    <rdfs:range rdf:resource="#Place_Keyword_Thesaurus"/>
    <rdfs:domain rdf:resource="#Place"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasVertical_Coordinate_System_Definition">
    <rdfs:range rdf:resource="#Vertical_Coordinate_System_Definition"/>
    <rdfs:domain rdf:resource="#Spatial_Reference_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDescription">
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdfs:range rdf:resource="#Description"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasQuantitative_Attribute_Accuracy_Assessment">
    <rdfs:range rdf:resource="#Quantitative_Attribute_Accuracy_Assessment"/>
    <rdfs:domain rdf:resource="#Attribute_Accuracy"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasCross_Reference">
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdfs:range rdf:resource="#Cross_Reference"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasMapProjectionName">
    <rdfs:comment xml:lang="en">Name of the map projection</rdfs:comment>
    <rdfs:range rdf:resource="#Map_Projection_Name"/>
    <rdfs:domain rdf:resource="#Map_Projection"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasQuantitative_Horizontal_Positional_Accuracy_Assessment">
    <rdfs:range rdf:resource="#Quantitative_Horizontal_Positional_Accuracy_Assessment"/>
    <rdfs:domain rdf:resource="#Horizontal_Positional_Accuracy"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasNetwork_Address">
    <rdfs:range rdf:resource="#Network_Address"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="Depth_Datum_Name">
    <rdfs:range rdf:resource="#DepthDatumNames"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Depth_System_Definition"/>
    <rdfs:comment xml:lang="en">The identification given to surface of reference from which depths are measured. </rdfs:comment>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasPlace">
    <rdfs:domain rdf:resource="#Keywords"/>
    <rdfs:range rdf:resource="#Place"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasform"/>
  <owl:ObjectProperty rdf:ID="hasTemporal">
    <rdfs:domain rdf:resource="#Keywords"/>
    <rdfs:range rdf:resource="#Temporal"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDigital_Transfer_Information">
    <rdfs:range rdf:resource="#Digital_Transfer_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasCitation">
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdfs:range rdf:resource="#Citation"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasMetadata_Reference_Information">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Metadata"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasBrowse_Graphic">
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdfs:range rdf:resource="#Browse_Graphic"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasOffline_Media">
    <rdfs:range rdf:resource="#Offline_Media"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasData_Quality_Information">
    <rdfs:domain rdf:resource="#Metadata"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#Data_Quality_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="Altitude_Datum_Name">
    <rdfs:domain rdf:resource="#Altitude_System_Definition"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#AltitudeDatumNames"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasTime_Period_Information">
    <rdfs:range rdf:resource="#Time_Period_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDigital_Form">
    <rdfs:range rdf:resource="#Digital_Form"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasDistribution_Information">
    <rdfs:range rdf:resource="#Distribution_Information"/>
    <rdfs:domain rdf:resource="#Metadata"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasRecording_Capacity">
    <rdfs:range rdf:resource="#Recording_Capacity"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasBrowse_Graphic_File_Type">
    <rdfs:range rdf:resource="#Browse_Graphic_File_Type"/>
    <rdfs:domain rdf:resource="#Browse_Graphic"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasMetadata_Contact">
    <rdfs:range rdf:resource="#Metadata_Contact"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasVPF_Point_and_Vector_Object_Information">
    <rdfs:range rdf:resource="#VPF_Point_and_Vector_Object_Information"/>
    <rdfs:domain rdf:resource="#VPF_Terms_Description"/>
  </owl:ObjectProperty>
  <owl:ObjectProperty rdf:ID="hasPublication_Information">
    <rdfs:domain rdf:resource="#Citation_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="#Publication_Information"/>
  </owl:ObjectProperty>
  <owl:DatatypeProperty rdf:ID="Range_Domain_Minimum">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:comment xml:lang="en">the least value that the attribute can be assigned. 
</rdfs:comment>
    <rdfs:domain>
      <owl:Class>
        <owl:unionOf rdf:parseType="Collection">
          <owl:Class rdf:about="#Range_Domain"/>
        </owl:unionOf>
      </owl:Class>
    </rdfs:domain>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Beginning_Date_of_Attribute_Values">
    <rdfs:domain rdf:resource="#Attribute"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">earliest or only date for which the attribute values are current. In cases when a range of dates are provided, this is the earliest date for which the information is valid. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Entity_Type_Definition">
    <rdfs:domain rdf:resource="#Entity_Type"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:comment xml:lang="en">the description of the entity type. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Completeness_Report">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Data_Quality_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">information about omissions, selection criteria, generalization, definitions used, and other rules used to derive the data set. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Column_Count">
    <rdfs:comment xml:lang="en">the maximum number of raster objects along the abscissa (x) axis. For use with rectangular raster objects</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Count"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Dialup_Telephone">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the telephone number of the distribution computer. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Latitude_of_Projection_Origin">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:comment xml:lang="en">Latitude chosen as the origin of rectangular coordinates for a map projection.</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Format_Specification">
    <rdfs:comment xml:lang="en">name of a subset, profile, or product specification of the format</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Longitude_Resolution">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:comment xml:lang="en">The minimum difference between two adjacent longitude values expressed in Geographic Coordinate Units of measure.</rdfs:comment>
    <rdfs:domain rdf:resource="#Geographic"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Lowest_BPS">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#int"/>
    <rdfs:comment xml:lang="en">lowest or only speed for the connection's communication, expressed in bits per second. </rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Highest_BPS">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#int"/>
    <rdfs:comment xml:lang="en">highest speed for the connection's communication, expressed in bits per second. Used in cases when a range of rates are provided.</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Entity_and_Attribute_Detail_Citation">
    <rdfs:comment xml:lang="en">reference to the complete description of the entity types, attributes, and attribute values for the data set</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Overview_Description"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Number_StopBits">
    <rdfs:comment xml:lang="en">number of stop bits in each character exchanged in the communication</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#int"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Non-digital_Form">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the description of options for obtaining the data set on non-computer- compatible media</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Parity">
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >None</rdf:first>
          <rdf:rest rdf:parseType="Resource">
            <rdf:rest rdf:parseType="Resource">
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Even</rdf:first>
              <rdf:rest rdf:parseType="Resource">
                <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                >Mark</rdf:first>
                <rdf:rest rdf:parseType="Resource">
                  <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
                  <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                  >Space</rdf:first>
                </rdf:rest>
              </rdf:rest>
            </rdf:rest>
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Odd</rdf:first>
          </rdf:rest>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdfs:comment xml:lang="en">parity error checking used in each character exchanged in the communication.</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Contact_Electronic_Mail_Address">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Contact_Information"/>
    <rdfs:comment xml:lang="en"> the address of the electronic mailbox of the organization or individual. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Access_Instructions">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">instructions on the steps required to access the data set. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Edition">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the version of the title. </rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Citation_Information"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Geospatial_Data_Presentation_Form">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Citation_Information"/>
    <rdfs:comment xml:lang="en">the mode in which the geospatial data are represented. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Custom_Order_Process">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">description of custom distribution services available, and the terms and conditions for obtaining these services</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Ending_Date">
    <rdfs:comment xml:lang="en"> the last year (and optionally month, or month and day) for the event. </rdfs:comment>
    <rdfs:domain rdf:resource="#Range_of_Dates_Times"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="G-Ring_Latitude">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#G-Ring_Point"/>
    <rdfs:comment xml:lang="en">the latitude of a point of the g-ring. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Profile_Name">
    <rdfs:domain rdf:resource="#Metadata_Extensions"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the name given to a document that describes the application of the Standard to a specific user community. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Format_Version_Date">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
    <rdfs:comment xml:lang="en">date of the version of the format</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Recording_Density_Units">
    <rdfs:comment xml:lang="en">the units of measure for the recording density. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Publication_Time">
    <rdfs:domain rdf:resource="#Citation_Information"/>
    <rdfs:comment xml:lang="en"> the time of day when the data set is published or otherwise made available for release. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#time"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Dialup_File_Name">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the name of a file containing the data set on the distribution computer</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Compatibility_Information">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">description of other limitations or requirements for using the medium</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="East_Bounding_Coordinate">
    <rdfs:comment xml:lang="en">eastern-most coordinate of the limit of coverage expressed in longitude. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#Bounding_Coordinates"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Metadata_Use_Constraints">
    <rdfs:comment xml:lang="en">restrictions and legal prerequisites for using the metadata after access is granted. These include any metadata use constraints applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations on using the metadata</rdfs:comment>
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Stratum_Keyword_Thesaurus">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">reference to a formally registered thesaurus or a similar authoritative source of stratum keywords. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Stratum"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Place_Keyword">
    <rdfs:domain rdf:resource="#Place"/>
    <rdfs:comment xml:lang="en">the geographic name of a location covered by a data set. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Technical_Prerequisites">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">description of any technical capabilities that the consumer must have to use the data set in the form(s) provided by the distributor</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Network_Resource_Name">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the name of the file or service from which the data set can be obtained.</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Local_Description">
    <rdfs:comment xml:lang="en">A description of the coordinate system and its orientation to the surface of the Earth. </rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Local"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Abstract">
    <rdfs:comment xml:lang="en">a brief narrative summary of the data set. </rdfs:comment>
    <rdfs:domain rdf:resource="#Description"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="False_Easting">
    <rdfs:comment xml:lang="en">The value added to all "x" values in the rectangular coordinates for a map projection. This value frequently is assigned to eliminate negative numbers. Expressed in the unit of measure identified in Planar Coordinate Units. </rdfs:comment>
    <rdfs:domain rdf:resource="#Map_Projection_Technique"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Metadata_Time_Convention">
    <rdfs:comment xml:lang="en"> form used to convey time of day information in the metadata entry. Used if time of day information is included in the metadata for a data set.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >local_time_with_time_differential_factor</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >universal_time</rdf:first>
            </rdf:rest>
          </rdf:rest>
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >local_time</rdf:first>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Unrepresentable_Domain">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#_Unrepresentable_Domain"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Vertical_Positional_Accuracy_Report">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Vertical_Positional_Accuracy"/>
    <rdfs:comment xml:lang="en">an explanation of the accuracy of the vertical coordinate measurements and a description of the tests used. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Contact_Position">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Contact_Information"/>
    <rdfs:comment xml:lang="en">the title of individual. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Altitude_Resolution">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#Altitude_System_Definition"/>
    <rdfs:comment xml:lang="en">The minimum distance possible between two adjacent altitude values, expressed in Altitude Distance Units of measure. </rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Contact_Voice_Telephone">
    <rdfs:domain rdf:resource="#Contact_Information"/>
    <rdfs:comment xml:lang="en"> the telephone number by which individuals can speak to the organization or individual. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Beginning_Date">
    <rdfs:comment xml:lang="en"> the first year (and optionally month, or month and day) of the event. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Range_of_Dates_Times"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Postal_Code">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the ZIP or other postal code of the address. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Contact_Address"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Longitude_of_Projection_Center">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:comment xml:lang="en">Longitude of the point of projection for azimuthal projections. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Purpose">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">a summary of the intentions with which the data set was developed</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Description"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Online_Linkage">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the name of an online computer resource that contains the data set. Entries should follow the Uniform Resource Locator convention of the Internet. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Straight-Vertical_Longitude_from_Pole">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#Polar_Stereographic"/>
    <rdfs:comment xml:lang="en">Longitude to be oriented straight up from the North or South Pole.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Ending_Time">
    <rdfs:domain rdf:resource="#Range_of_Dates_Times"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#time"/>
    <rdfs:comment xml:lang="en">the last hour (and optionally minute, or minute and second) of the day for the event. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Height_of_Perspective_Point_Above_Surface">
    <rdfs:domain rdf:resource="#General_Vertical_Near-sided_Perspective"/>
    <rdfs:comment xml:lang="en">Height of viewpoint above the Earth, expressed in meters.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Attribute_Value_Accuracy_Explanation">
    <rdfs:domain rdf:resource="#Attribute_Value_Accuracy_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the definition of the Attribute Value Accuracy measure and units, and a description of how the estimate was derived. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Indirect_Spatial_Reference">
    <rdfs:comment xml:lang="en">name of types of geographic features, addressing schemes, or other means through which locations are referenced in the data set. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Spatial_Data_Organization_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Horizontal_Positional_Accuracy_Explanation">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Quantitative_Horizontal_Positional_Accuracy_Assessment"/>
    <rdfs:comment xml:lang="en">the identification of the test that yielded the Horizontal Positional Accuracy Value. </rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Issue_Identification">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Series_Information"/>
    <rdfs:comment xml:lang="en"> information identifying the issue of the series publication of which the data set is a part. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Attribute_Definition_Source">
    <rdfs:domain rdf:resource="#Attribute"/>
    <rdfs:comment xml:lang="en"> the authority of the definition</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Attribute_Definition">
    <rdfs:comment xml:lang="en">the description of the attribute</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Attribute"/>
  </owl:DatatypeProperty>
  <owl:AnnotationProperty rdf:ID="importantNote" />
  <owl:DatatypeProperty rdf:ID="SDTS_Point_and_Vector_Object_Type">
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Point</rdf:first>
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Entity_point</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Label_point</rdf:first>
              <rdf:rest rdf:parseType="Resource">
                <rdf:rest rdf:parseType="Resource">
                  <rdf:rest rdf:parseType="Resource">
                    <rdf:rest rdf:parseType="Resource">
                      <rdf:rest rdf:parseType="Resource">
                        <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                        >String</rdf:first>
                        <rdf:rest rdf:parseType="Resource">
                          <rdf:rest rdf:parseType="Resource">
                            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                            >Complete_chain</rdf:first>
                            <rdf:rest rdf:parseType="Resource">
                              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                              >Area_chain</rdf:first>
                              <rdf:rest rdf:parseType="Resource">
                                <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                                >Network_chain_planar_graph</rdf:first>
                                <rdf:rest rdf:parseType="Resource">
                                  <rdf:rest rdf:parseType="Resource">
                                    <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                                    >Circular_arc_three_point_center</rdf:first>
                                    <rdf:rest rdf:parseType="Resource">
                                      <rdf:rest rdf:parseType="Resource">
                                        <rdf:rest rdf:parseType="Resource">
                                          <rdf:rest rdf:parseType="Resource">
                                            <rdf:first rdf:datatype=
                                            "http://www.w3.org/2001/XMLSchema#string"
                                            >Ring_with_mixed_composition</rdf:first>
                                            <rdf:rest rdf:parseType="Resource">
                                              <rdf:rest rdf:parseType="Resource">
                                                <rdf:rest rdf:parseType="Resource">
                                                  <rdf:first rdf:datatype=
                                                  "http://www.w3.org/2001/XMLSchema#string"
                                                  >Ring_composed_of_arcs</rdf:first>
                                                  <rdf:rest rdf:parseType="Resource">
                                                    <rdf:rest rdf:parseType="Resource">
                                                      <rdf:first
                                                       rdf:datatype=
                                                      "http://www.w3.org/2001/XMLSchema#string"
                                                      >GT-polygon_composed_of_rings</rdf:first>
                                                      <rdf:rest rdf:parseType="Resource">
                                                        <rdf:rest rdf:parseType="Resource">
                                                          <rdf:rest rdf:parseType="Resource">
                                                            <rdf:first
                                                             rdf:datatype=
                                                            "http://www.w3.org/2001/XMLSchema#string"
                                                            >Void_polygon_composed_of_rings</rdf:first>
                                                            <rdf:rest rdf:parseType="Resource">
                                                              <rdf:first
                                                               rdf:datatype=
                                                              "http://www.w3.org/2001/XMLSchema#string"
                                                              >Void_polygon_composed_of_chains</rdf:first>
                                                              <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
                                                            </rdf:rest>
                                                          </rdf:rest>
                                                          <rdf:first
                                                           rdf:datatype=
                                                          "http://www.w3.org/2001/XMLSchema#string"
                                                          >Universe_polygon_composed_of_rings</rdf:first>
                                                        </rdf:rest>
                                                        <rdf:first
                                                         rdf:datatype=
                                                        "http://www.w3.org/2001/XMLSchema#string"
                                                        >GT-polygon_composed_of_chains</rdf:first>
                                                      </rdf:rest>
                                                    </rdf:rest>
                                                    <rdf:first
                                                     rdf:datatype=
                                                    "http://www.w3.org/2001/XMLSchema#string"
                                                    >G-polygon</rdf:first>
                                                  </rdf:rest>
                                                </rdf:rest>
                                                <rdf:first rdf:datatype=
                                                "http://www.w3.org/2001/XMLSchema#string"
                                                >Ring_composed_of_chains</rdf:first>
                                              </rdf:rest>
                                              <rdf:first rdf:datatype=
                                              "http://www.w3.org/2001/XMLSchema#string"
                                              >Ring_composed_of_strings</rdf:first>
                                            </rdf:rest>
                                          </rdf:rest>
                                          <rdf:first rdf:datatype=
                                          "http://www.w3.org/2001/XMLSchema#string"
                                          >Piecewise_Bezier</rdf:first>
                                        </rdf:rest>
                                        <rdf:first rdf:datatype=
                                        "http://www.w3.org/2001/XMLSchema#string"
                                        >Uniform_B_spline</rdf:first>
                                      </rdf:rest>
                                      <rdf:first rdf:datatype=
                                      "http://www.w3.org/2001/XMLSchema#string"
                                      >Elliptical_arc</rdf:first>
                                    </rdf:rest>
                                  </rdf:rest>
                                  <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                                  >Network_chain_nonplanar_graph</rdf:first>
                                </rdf:rest>
                              </rdf:rest>
                            </rdf:rest>
                          </rdf:rest>
                          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                          >Link</rdf:first>
                        </rdf:rest>
                      </rdf:rest>
                      <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                      >Node_network</rdf:first>
                    </rdf:rest>
                    <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                    >planar_graph</rdf:first>
                  </rdf:rest>
                  <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                  >Node</rdf:first>
                </rdf:rest>
                <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                >Area_point</rdf:first>
              </rdf:rest>
            </rdf:rest>
          </rdf:rest>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdfs:domain rdf:resource="#SDTS_Terms_Description"/>
    <rdfs:comment xml:lang="en">name of point and vector spatial objects used to locate zero-, one-, and two-dimensional spatial locations in the data set. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Format_Version_Number">
    <rdfs:comment xml:lang="en">version number of the format</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Abscissa_Resolution">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Coordinate_Representation"/>
    <rdfs:comment xml:lang="en">The (nominal) minimum distance between the "x" or column values of two adjacent points, expressed in Planar Distance Units of measure.</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Attribute_Value_Accuracy">
    <rdfs:comment xml:lang="en">an estimate of the accuracy of the assignment of attribute values. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Attribute_Value_Accuracy_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Compression_Support">
    <rdfs:comment xml:lang="en">data compression available through the modem service to speed data transfer.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Metadata_Date">
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:comment xml:lang="en">the date that the metadata were created or last updated</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Security_Handling_Description">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Security_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:comment xml:lang="en">additional information about the restrictions on handling the data set. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Format_Information_Content">
    <rdfs:comment xml:lang="en">description of the content of the data encoded in a format.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Address">
    <rdfs:domain rdf:resource="#Contact_Address"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en"> an address line for the address. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Resource_Description">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Distribution_Information"/>
    <rdfs:comment xml:lang="en">the identifier by which the distributor knows the data set</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Semi-major_Axis">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:comment xml:lang="en">Radius of the equatorial axis of the ellipsoid.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Geodetic_Model"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Turnaround">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en"> typical turnaround time for the filling of an order</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="North_Bounding_Coordinate">
    <rdfs:domain rdf:resource="#Bounding_Coordinates"/>
    <rdfs:comment xml:lang="en"> northern-most coordinate of the limit of coverage expressed in latitude. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Contact_TDD_TTY_Telephone">
    <rdfs:comment xml:lang="en">the telephone number by which hearing-impaired individuals can contact the organization or individual. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Contact_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Vertical_Positional_Accuracy_Explanation">
    <rdfs:comment xml:lang="en">the identification of the test that yielded the Vertical Positional Accuracy Value. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Quantitative_Vertical_Positional_Accuracy_Assessment"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Bearing_Reference_Meridian">
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Assumed</rdf:first>
          <rdf:rest rdf:parseType="Resource">
            <rdf:rest rdf:parseType="Resource">
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Magnetic</rdf:first>
              <rdf:rest rdf:parseType="Resource">
                <rdf:rest rdf:parseType="Resource">
                  <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                  >Geodetic</rdf:first>
                  <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
                </rdf:rest>
                <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                >Astronomic</rdf:first>
              </rdf:rest>
            </rdf:rest>
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Grid</rdf:first>
          </rdf:rest>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdfs:domain rdf:resource="#Distance_and_Bearing_Representation"/>
    <rdfs:comment xml:lang="en">Axis from which the bearing is measured.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Process_Description">
    <rdfs:comment xml:lang="en">an explanation of the event and related parameters or tolerances. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Process_Step"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="False_Northing">
    <rdfs:comment xml:lang="en">The value added to all "y" values in the rectangular coordinates for a map projection. This value frequently is assigned to eliminate negative numbers. Expressed in the unit of measure identified in Planar Coordinate Units.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#Map_Projection_Technique"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Codeset_Source">
    <rdfs:comment xml:lang="en"> the authority for the codeset</rdfs:comment>
    <rdfs:domain rdf:resource="#Codeset_Domain"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Process_Time">
    <rdfs:comment xml:lang="en">the time when the event was completed</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#time"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Process_Step"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Oblique_Line_Longitude">
    <rdfs:comment xml:lang="en">Longitude of a point defining the oblique line. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#Oblique_Line_Point"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Contact_Facsimile_Telephone">
    <rdfs:comment xml:lang="en">the telephone number of a facsimile machine of the organization or individual. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Contact_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Ordering_Instructions">
    <rdfs:comment xml:lang="en">general instructions and advice about, and special terms and services provided for, the data set by the distributor</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Temporal_Keyword">
    <rdfs:comment xml:lang="en">the name of a time period covered by a data set. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Temporal"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="South_Bounding_Coordinate">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:comment xml:lang="en">southern-most coordinate of the limit of coverage expressed in latitude. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Bounding_Coordinates"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Contact_Person">
    <rdfs:comment xml:lang="en"> the name of the individual to which the contact type applies. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="File_Decompression_Technique">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">recommendations of algorithms or processes (including means of obtaining these algorithms or processes) that can be applied to read or expand data sets to which data compression techniques have been applied. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Source_Produced_Citation_Abbreviation">
    <rdfs:comment xml:lang="en">the Source Citation Abbreviation of an intermediate data set that (1) is significant in the opinion of the data producer, (2) is generated in the processing step, and (3) is used in later processing steps. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Process_Step"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Point_and_Vector_Object_Count">
    <rdfs:comment xml:lang="en">the total number of the point or vector object type occurring in the data set. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#SDTS_Terms_Description"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="VPF_Topology_Level">
    <rdfs:comment xml:lang="en">the completeness of the topology carried by the data set. The levels of completeness are defined in Department of Defense, 1992, Vector Product Format (MIL-STD-600006): Philadelphia, Department of Defense, Defense Printing Service Detachment Office. </rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
    <rdfs:domain rdf:resource="#VPF_Terms_Description"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Title">
    <rdfs:domain rdf:resource="#Citation_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the name by which the data set is known. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Transfer_Size">
    <rdfs:comment xml:lang="en">the size, or estimated size, of the transferred data set in megabytes.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Publication_Date">
    <rdfs:comment xml:lang="en"> the date when the data set is published or otherwise made available for release. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Citation_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Grid_Coordinate_System_Name">
    <rdfs:domain rdf:resource="#Grid_Coordinate_System"/>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Universal_Polar_Stereographic</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:rest rdf:parseType="Resource">
                <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                >State_Plane_Coordinate_System_1983</rdf:first>
                <rdf:rest rdf:parseType="Resource">
                  <rdf:rest rdf:parseType="Resource">
                    <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                    >other_grid_system</rdf:first>
                    <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
                  </rdf:rest>
                  <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                  >ARC_Coordinate_System</rdf:first>
                </rdf:rest>
              </rdf:rest>
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >State_Plane_Coordinate_System_1927</rdf:first>
            </rdf:rest>
          </rdf:rest>
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Universal_Transverse_Mercator</rdf:first>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Oblique_Line_Latitude">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:comment xml:lang="en">Latitude of a point defining the oblique line. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Oblique_Line_Point"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Distribution_Liability">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">statement of the liability assumed by the distributor</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Theme_Keyword">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">common-use word or phrase used to describe the subject of the data set. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Theme"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Geographic_Coordinate_Units">
    <rdfs:domain rdf:resource="#Geographic"/>
    <rdfs:comment xml:lang="en">Units of measure used for the latitude and longitude values.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Decimal_minutes</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:rest rdf:parseType="Resource">
                <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                >Degrees_and_decimal_minutes</rdf:first>
                <rdf:rest rdf:parseType="Resource">
                  <rdf:rest rdf:parseType="Resource">
                    <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                    >Radians</rdf:first>
                    <rdf:rest rdf:parseType="Resource">
                      <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                      >Grads</rdf:first>
                      <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
                    </rdf:rest>
                  </rdf:rest>
                  <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                  >Degrees_minutes_and_decimal_seconds</rdf:first>
                </rdf:rest>
              </rdf:rest>
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Decimal_seconds</rdf:first>
            </rdf:rest>
          </rdf:rest>
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Decimal_degrees</rdf:first>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Horizontal_Positional_Accuracy_Value">
    <rdfs:domain rdf:resource="#Quantitative_Horizontal_Positional_Accuracy_Assessment"/>
    <rdfs:comment xml:lang="en">an estimate of the accuracy of the horizontal coordinate measurements in the data set expressed in (ground) meters. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Enumerated_Domain_Value">
    <rdfs:domain rdf:resource="#Enumerated_Domain"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the name or label of a member of the set. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Contact_Instructions">
    <rdfs:comment xml:lang="en"> supplemental instructions on how or when to contact the individual or organization. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Contact_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Enumerated_Domain_Value_Definition_Source">
    <rdfs:domain rdf:resource="#Enumerated_Domain"/>
    <rdfs:comment xml:lang="en"> the authority of the definition. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Local_Planar_Georeference_Information">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:comment xml:lang="en">A description of the information provided to register the local planar system to the Earth e.g. control points, satellite ephemeral data, inertial navigation data.</rdfs:comment>
    <rdfs:domain rdf:resource="#Local_Planar"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Metadata_Access_Constraints">
    <rdfs:comment xml:lang="en">restrictions and legal prerequisites for accessing the metadata. These include any access constraints applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations on obtaining the metadata</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="SPCS_Zone_Identifier">
    <rdfs:domain rdf:resource="#State_Plane_Coordinate_System"/>
    <rdfs:comment xml:lang="en">identifier for the SPCS zone</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Other_Citation_Details">
    <rdfs:comment xml:lang="en">other information required to complete the citation</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Citation_Information"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Enumerated_Domain_Value_Definition">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Enumerated_Domain"/>
    <rdfs:comment xml:lang="en">the description of the value. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Number_DataBits">
    <rdfs:comment xml:lang="en">number of data bits in each character exchanged in the communication. 
Type: integer 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#int"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Fees">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the fees and terms for retrieving the data set. </rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Ending_Date_of_Attribute_Values">
    <rdfs:domain rdf:resource="#Attribute"/>
    <rdfs:comment xml:lang="en"> latest date for which the information is current. Used in cases when a range of dates are provided</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Source_Currentness_Reference">
    <rdfs:comment xml:lang="en">the basis on which the source time period of content information of the source data set is determined.</rdfs:comment>
    <rdfs:domain rdf:resource="#Source_Time_Period_of_Content"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Online_Computer_and_Operating_System">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the brand of distribution computer and its operating system. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Supplemental_Information">
    <rdfs:comment xml:lang="en">other descriptive information about the data set. </rdfs:comment>
    <rdfs:domain rdf:resource="#Description"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Scale_Factor_at_Center_Line">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#Oblique_Mercator"/>
    <rdfs:comment xml:lang="en">A multiplier for reducing a distance obtained from a map by computation or scaling to the actual distance along the center line.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Recording_Density">
    <rdfs:comment xml:lang="en">the density in which the data set can be recorded. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Country">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Contact_Address"/>
    <rdfs:comment xml:lang="en"> the country of the address</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Planar_Coordinate_Encoding_Method">
    <rdfs:domain rdf:resource="#Planar_Coordinate_Information"/>
    <rdfs:comment xml:lang="en">The means used to represent horizontal positions</rdfs:comment>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >distance_and_bearing</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >row_and_column</rdf:first>
              <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
            </rdf:rest>
          </rdf:rest>
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >coordinate_pair</rdf:first>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Source_Used_Citation_Abbreviation">
    <rdfs:comment xml:lang="en">the Source Citation Abbreviation of a data set used in the processing step. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Process_Step"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Metadata_Future_Review_Date">
    <rdfs:comment xml:lang="en"> the date by which the metadata entry should be reviewed.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Metadata_Standard_Name">
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
    <rdfs:comment xml:lang="en">the name of the metadata standard used to document the data set. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Entity_Type_Label">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en"> the name of the entity type. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Entity_Type"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Originator">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Citation_Information"/>
    <rdfs:comment xml:lang="en"> the name of an organization or individual that developed the data set. If the name of editors or compilers are provided, the name must be followed by "(ed.)" or "(comp.)" respectively. 
</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="G-Ring">
    <rdfs:domain rdf:resource="#G-Ring_Ring"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:comment xml:lang="en">a set of ordered pairs of floating-point numbers, separated by commas, in which the first number in each pair is the longitude of a point and the second is the latitude of the point. Longitude and latitude are specified in decimal degrees with north latitudes positive and south negative, east longitude positive and west negative 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Source_Citation_Abbreviation">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:domain rdf:resource="#Source_Information"/>
    <rdfs:comment xml:lang="en">short-form alias for the source citation. </rdfs:comment>
  </owl:DatatypeProperty>
  <owl:DatatypeProperty rdf:ID="Depth_Resolution">
    <rdfs:domain rdf:resource="#Depth_System_Definition"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
    <rdfs:comment xml:lang="en">The minimum distance possible between two adjacent depth values, expressed in Depth Distance Units of measure.</rdfs:comment>
  </owl:DatatypeProperty>
  <owl:FunctionalProperty rdf:ID="UPS_Zone_Identifier">
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >A</rdf:first>
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >B</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:rest rdf:parseType="Resource">
                <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
                <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                >Z</rdf:first>
              </rdf:rest>
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Y</rdf:first>
            </rdf:rest>
          </rdf:rest>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">Identifier for the UPS zone</rdfs:comment>
    <rdfs:domain rdf:resource="#Universal_Polar_Stereographic"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="G-Ring_Longitude">
    <rdfs:domain rdf:resource="#G-Ring_Point"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en"> the longitude of a point of the g-ring.</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasAttribute_Value_Accuracy_Information">
    <rdfs:range rdf:resource="#Attribute_Value_Accuracy_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:domain rdf:resource="#Attribute"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasTerms_Description">
    <rdfs:domain rdf:resource="#Point_and_Vector_Object_Information"/>
    <rdfs:range rdf:resource="#Terms_Description"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Bearing_Units">
    <rdfs:domain rdf:resource="#Distance_and_Bearing_Representation"/>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Decimal_minutes</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Decimal_seconds</rdf:first>
              <rdf:rest rdf:parseType="Resource">
                <rdf:rest rdf:parseType="Resource">
                  <rdf:rest rdf:parseType="Resource">
                    <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                    >Radians</rdf:first>
                    <rdf:rest rdf:parseType="Resource">
                      <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                      >Grads</rdf:first>
                      <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
                    </rdf:rest>
                  </rdf:rest>
                  <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                  >Degrees_minutes_and_decimal_seconds</rdf:first>
                </rdf:rest>
                <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
                >Degrees_and_decimal_minutes</rdf:first>
              </rdf:rest>
            </rdf:rest>
          </rdf:rest>
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Decimal_degrees</rdf:first>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">Units of measure used for angles.</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="UTM_Zone_Number">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">Identifier for the UTM zone</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
    <rdfs:domain rdf:resource="#Universal_Transverse_Mercator"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Longitude_of_Central_Meridian">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">The line of longitude at the center of a map projection generally used as the basis for constructing the projection.</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasVertical_Positional_Accuracy">
    <rdfs:domain rdf:resource="#Positional_Accuracy"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:range rdf:resource="#Vertical_Positional_Accuracy"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Azimuth_Measure_Point_Longitude">
    <rdfs:domain rdf:resource="#Oblique_Line_Azimuth"/>
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Longitude of the map projection origin. </rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasDate_Time">
    <rdfs:domain rdf:resource="#Time_Period_Information"/>
    <rdfs:range rdf:resource="#Date_Time"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasContact_Primary">
    <rdfs:range rdf:resource="#Contact_Primary"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:domain rdf:resource="#Contact_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Local_Planar_Description">
    <rdfs:domain rdf:resource="#Local_Planar"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >A description of the local planar system</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Entity_Type_Definition_Source">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the authority of the definition</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Entity_Type"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Path_Number">
    <rdfs:domain rdf:resource="#Space_Oblique_Mercator_Landsat"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">Number of the orbit of the Landsat satellite.Note: This data element exists solely to provide a parameter needed to define the space oblique mercator projection. It is not used to identify data originating from a remote sensing vehicle.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Process_Date">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
    <rdfs:comment xml:lang="en">the date when the event was completed. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Process_Step"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="PlanarDistanceUnit">
    <rdfs:range rdf:resource="#PlanarDistanceUnits"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:domain rdf:resource="#Planar_Coordinate_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasBounding_Coordinates">
    <rdfs:domain rdf:resource="#Spatial_Domain"/>
    <rdfs:range rdf:resource="#Bounding_Coordinates"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Horizontal_Positional_Accuracy_Report">
    <rdfs:domain rdf:resource="#Horizontal_Positional_Accuracy"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">an explanation of the accuracy of the horizontal coordinate measurements and a description of the tests used. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Latitude_Resolution">
    <rdfs:domain rdf:resource="#Geographic"/>
    <rdfs:comment xml:lang="en">The minimum difference between two adjacent latitude values expressed in Geographic Coordinate Units of measure.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Use_Constraints">
    <rdfs:comment xml:lang="en">restrictions and legal prerequisites for using the data set after access is granted. These include any use constraints applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations on using the data set. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasLineage">
    <rdfs:domain rdf:resource="#Data_Quality_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:range rdf:resource="#Lineage"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasAttribute_Accuracy">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:comment xml:lang="en">provides information about Attribute Accuracy
</rdfs:comment>
    <rdfs:domain rdf:resource="#Data_Quality_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasSpatial_Domain">
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdfs:range rdf:resource="#Spatial_Domain"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasTime_Period_of_Content">
    <rdfs:range rdf:resource="#Time_Period_of_Content"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:domain rdf:resource="#Identification_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasLocalCoord">
    <rdfs:range rdf:resource="#Local"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:domain rdf:resource="#HorizontalCoordLocal"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Time_of_Day">
    <rdfs:comment xml:lang="en">the hour (and optionally minute, or minute and second) of the day.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#time"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Single_Date_Time"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasSpatial_Data_Organization_Information">
    <rdfs:range rdf:resource="#Spatial_Data_Organization_Information"/>
    <rdfs:domain rdf:resource="#Metadata"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Attribute_Accuracy_Value">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
    <rdfs:comment xml:lang="en">an estimate of the accuracy of the identification of the entities and assignments of attribute values in the data set. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Quantitative_Attribute_Accuracy_Assessment"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasSecurity_Information">
    <rdfs:range rdf:resource="#Security_Information"/>
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Altitude_Encoding_Method">
    <rdfs:domain rdf:resource="#Altitude_System_Definition"/>
    <rdfs:comment xml:lang="en">The means used to encode the altitudes</rdfs:comment>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Attribute_values</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Explicit_depth_coordinate_included_with_horizontal_coordinates</rdf:first>
            </rdf:rest>
          </rdf:rest>
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Implicit_coordinate</rdf:first>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Attribute_Measurement_Frequency">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en"> the frequency with which attribute values are added. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Attribute"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Row_Count">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
    <rdfs:comment xml:lang="en">the maximum number of raster objects along the ordinate (y) axis. For use with rectangular raster objects. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Count"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Metadata_Review_Date">
    <rdfs:comment xml:lang="en"> the date of the latest review of the metadata entry. </rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasCitation_Information">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:range rdf:resource="#Citation_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Logical_Consistency_Report">
    <rdfs:domain rdf:resource="#Data_Quality_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">an explanation of the fidelity of relationships in the data set and tests used. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Metadata_Standard_Version">
    <rdfs:comment xml:lang="en"> identification of the version of the metadata standard used to document the data set. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Depth_Encoding_Method">
    <rdfs:domain rdf:resource="#Depth_System_Definition"/>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Implicit_coordinate</rdf:first>
          <rdf:rest rdf:parseType="Resource">
            <rdf:rest rdf:parseType="Resource">
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Explicit_depth_coordinate_included_with_horizontal_coordinates</rdf:first>
              <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
            </rdf:rest>
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Attribute_values</rdf:first>
          </rdf:rest>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdfs:comment xml:lang="en">The means used to encode depths.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Cloud_Cover">
    <rdfs:comment xml:lang="en">area of a data set obstructed by clouds, expressed as a percentage of the spatial extent. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Data_Quality_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Ellipsoid_Name">
    <rdfs:comment xml:lang="en">Identification given to established representations of the Earth's shape.</rdfs:comment>
    <rdfs:domain rdf:resource="#Geodetic_Model"/>
    <rdfs:range rdf:resource="#EllipsoidNames"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Source_Contribution">
    <rdfs:comment xml:lang="en">brief statement identifying the information contributed by the source to the data set. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Source_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Temporal_Keyword_Thesaurus">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Temporal"/>
    <rdfs:comment xml:lang="en">reference to a formally registered thesaurus or a similar authoritative source of temporal keywords. 
</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasDistributor">
    <rdfs:domain rdf:resource="#Distribution_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="usesRepresentationMethod">
    <rdfs:range rdf:resource="#RepresentationMethods"/>
    <rdfs:domain rdf:resource="#Planar_Coordinate_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Vertical_Positional_Accuracy_Value">
    <rdfs:domain rdf:resource="#Quantitative_Vertical_Positional_Accuracy_Assessment"/>
    <rdfs:comment xml:lang="en">an estimate of accuracy of the vertical positions in the data set. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Publication_Place">
    <rdfs:domain rdf:resource="#Publication_Information"/>
    <rdfs:comment xml:lang="en">the name of the city (and state or province, and country, if needed to identify the city) where the data set was published or released. </rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Codeset_Name">
    <rdfs:domain rdf:resource="#Codeset_Domain"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the title of the codeset. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Attribute_Measurement_Resolution">
    <rdfs:comment xml:lang="en">the smallest unit increment to which an attribute value is measured. 
</rdfs:comment>
    <rdfs:domain>
      <owl:Class>
        <owl:unionOf rdf:parseType="Collection">
          <owl:Class rdf:about="#Range_Domain"/>
        </owl:unionOf>
      </owl:Class>
    </rdfs:domain>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Browse_Graphic_File_Name">
    <rdfs:domain rdf:resource="#Browse_Graphic"/>
    <rdfs:comment xml:lang="en">name of a related graphic file that provides an illustration of the data set. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Publisher">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Publication_Information"/>
    <rdfs:comment xml:lang="en">the name of the individual or organization that published the data set. 
</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Series_Name">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Series_Information"/>
    <rdfs:comment xml:lang="en">the name of the series publication of which the data set is a part. </rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Security_Classification_System">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">name of the classification system</rdfs:comment>
    <rdfs:domain rdf:resource="#Security_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Source_Scale_Denominator">
    <rdfs:domain rdf:resource="#Source_Information"/>
    <rdfs:comment xml:lang="en">the denominator of the representative fraction on a map (for example, on a 1:24,000-scale map, the Source Scale Denominator is 24000). 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Theme_Keyword_Thesaurus">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en"> reference to a formally registered thesaurus or a similar authoritative source of theme keywords. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Theme"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasAddress_Type">
    <rdfs:range rdf:resource="#Address_Type"/>
    <rdfs:domain rdf:resource="#Contact_Address"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Access_Constraints">
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">restrictions and legal prerequisites for accessing the data set. These include any access constraints applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations on obtaining the data set. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Stratum_Keyword">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">the name of a vertical location used to describe the locations covered by a data set. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Stratum"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasPlanarSystem">
    <rdfs:range rdf:resource="#PlanarSystem"/>
    <rdfs:domain rdf:resource="#Planar"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Landsat_Number">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
    <rdfs:domain rdf:resource="#Space_Oblique_Mercator_Landsat"/>
    <rdfs:comment xml:lang="en">Number of the Landsat satellite.Note: This data element exists solely to provide a parameter needed to define the space oblique mercator projection. It is not used to identify data originating from a remote sensing vehicle.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="City">
    <rdfs:comment xml:lang="en">the city of the address. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Contact_Address"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="West_Bounding_Coordinate">
    <rdfs:domain rdf:resource="#Bounding_Coordinates"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:comment xml:lang="en">western-most coordinate of the limit of coverage expressed in longitude. 
</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasType_of_Source_Media">
    <rdfs:domain rdf:resource="#Source_Information"/>
    <rdfs:range rdf:resource="#Type_of_Source_Media"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasMetadata_Security_Information">
    <rdfs:domain rdf:resource="#Metadata_Reference_Information"/>
    <rdfs:range rdf:resource="#Metadata_Security_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Local_Georeference_Information">
    <rdfs:comment xml:lang="en">A description of the information provided to register the local system to the Earth (e.g. control points, satellite ephemeral data, inertial navigation data).</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Local"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Range_Domain_Maximum">
    <rdfs:comment xml:lang="en">the greatest value that the attribute can be assigned. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain>
      <owl:Class>
        <owl:unionOf rdf:parseType="Collection">
          <owl:Class rdf:about="#Range_Domain"/>
        </owl:unionOf>
      </owl:Class>
    </rdfs:domain>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasCoordinateSystem">
    <rdfs:domain rdf:resource="#Grid_Coordinate_System"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:range rdf:resource="#Coordinate_System"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="HorizontalDatumName">
    <rdfs:domain rdf:resource="#Geodetic_Model"/>
    <rdfs:range rdf:resource="#HorizontalDatumNames"/>
    <rdfs:comment xml:lang="en">The identification given to the reference system used for defining the coordinates of points. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="explanationOfProjectionTechnique">
    <rdfs:domain rdf:resource="#Map_Projection"/>
    <rdfs:range rdf:resource="#Map_Projection_Technique"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Distance_Resolution">
    <rdfs:comment xml:lang="en">The minimum distance measurable between two points, expressed Planar Distance Units of measure.</rdfs:comment>
    <rdfs:domain rdf:resource="#Distance_and_Bearing_Representation"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasSource_Time_Period_of_Content">
    <rdfs:range rdf:resource="#Source_Time_Period_of_Content"/>
    <rdfs:domain rdf:resource="#Source_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Data_Set_Credit">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">coordinates defining the outline of an area covered by a data set. 
</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Bearing_Resolution">
    <rdfs:domain rdf:resource="#Distance_and_Bearing_Representation"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">The minimum angle measurable between two points, expressed in Bearing Units of measure.</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasDepthSystemDefinition">
    <rdfs:domain rdf:resource="#Vertical_Coordinate_System_Definition"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:range rdf:resource="#Depth_System_Definition"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Beginning_Time">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#time"/>
    <rdfs:domain rdf:resource="#Range_of_Dates_Times"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">the first hour (and optionally minute, or minute and second) of the day for the event. 
</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasLarger_Work_Citation">
    <rdfs:domain rdf:resource="#Citation_Information"/>
    <rdfs:range rdf:resource="#Larger_Work_Citation"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Attribute_Label">
    <rdfs:domain rdf:resource="#Attribute"/>
    <rdfs:comment xml:lang="en">the name of the attribute</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Attribute_Units_of_Measure">
    <rdfs:domain>
      <owl:Class>
        <owl:unionOf rdf:parseType="Collection">
          <owl:Class rdf:about="#Range_Domain"/>
        </owl:unionOf>
      </owl:Class>
    </rdfs:domain>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">the standard of measurement for an attribute value. 
</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Contact_Organization">
    <rdfs:comment xml:lang="en"> the name of the organization to which the contact type applies. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Browse_Graphic_File_Description">
    <rdfs:domain rdf:resource="#Browse_Graphic"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">a text description of the illustration. </rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Denominator_of_Flattening_Ratio">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#Geodetic_Model"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">The denominator of the ratio of the difference between the equatorial and polar radii of the ellipsoid when the numerator is set to 1. </rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Entity_and_Attribute_Overview">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">detailed summary of the information contained in a data set. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#Overview_Description"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasAttribute_Domain">
    <rdfs:range rdf:resource="#Attribute_Domain"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:domain rdf:resource="#Attribute_Domain_Values"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Scale_Factor_at_Central_Meridian">
    <rdfs:domain rdf:resource="#Transverse_Mercator"/>
    <rdfs:comment xml:lang="en">A multiplier for reducing a distance obtained from a map by computation or scaling to the actual distance along the central meridian.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Hours_of_Service">
    <rdfs:domain rdf:resource="#Contact_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:comment xml:lang="en">time period when individuals can speak to the organization or individual. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Direct_Spatial_Reference_Method">
    <rdfs:comment xml:lang="en">the system of objects used to represent space in the data set. 
</rdfs:comment>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Point</rdf:first>
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Vector</rdf:first>
            <rdf:rest rdf:parseType="Resource">
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Raster</rdf:first>
              <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
            </rdf:rest>
          </rdf:rest>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
    <rdfs:domain rdf:resource="#Spatial_Data_Organization_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Metadata_Security_Handling_Description">
    <rdfs:comment xml:lang="en">additional information about the restrictions on handling the metadata. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Metadata_Security_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasObject_Information">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:domain rdf:resource="#Spatial_Data_Organization_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasMaintenance_and_Update_Frequency">
    <rdfs:domain rdf:resource="#Status"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="ARC_System_Zone_Identifier">
    <rdfs:comment xml:lang="en">Identifier for the ARC Coordinate System Zone</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
    <rdfs:domain rdf:resource="#ARC_Coordinate_System"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Metadata_Security_Classification_System">
    <rdfs:comment xml:lang="en">name of the handling restrictions on the metadata. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Metadata_Security_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasStatus">
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdfs:range rdf:resource="#Status"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Latitude_of_Projection_Center">
    <rdfs:comment xml:lang="en">Latitude of the point of projection for azimuthal projections.</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasGeodetic_Model">
    <rdfs:domain rdf:resource="#Horizontal_Coordinate_System_Definition"/>
    <rdfs:range rdf:resource="#Geodetic_Model"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasCurrentness_Reference">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
    <rdfs:domain rdf:resource="#Time_Period_Information"/>
    <rdfs:range rdf:resource="#Currentness_Reference"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Vertical_Count">
    <rdfs:domain rdf:resource="#Count"/>
    <rdfs:comment xml:lang="en">the maximum number of raster objects along the vertical (z) axis. For use with rectangular volumetric raster objects (voxels). 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Progress">
    <rdfs:comment xml:lang="en">the state of the data set. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Status"/>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >Complete</rdf:first>
          <rdf:rest rdf:parseType="Resource">
            <rdf:rest rdf:parseType="Resource">
              <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
              <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
              >Planned</rdf:first>
            </rdf:rest>
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >In_work</rdf:first>
          </rdf:rest>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Native_Data_Set_Environment">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdfs:comment xml:lang="en">a description of the data set in the producer's processing environment, including items such as the name of the software (including version), the computer operating system, file name (including host-, path-, and filenames), and the data set size. 
</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasKeywords">
    <rdfs:range rdf:resource="#Keywords"/>
    <rdfs:domain rdf:resource="#Identification_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Attribute_Accuracy_Report">
    <rdfs:domain rdf:resource="#Attribute_Accuracy"/>
    <rdfs:comment xml:lang="en">an assessment of the accuracy of the identification of entities and assignment of attribute values in the data set. 
</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasGeoCoord">
    <rdfs:range rdf:resource="#Geographic"/>
    <rdfs:domain rdf:resource="#HorizontalCoordGeographic"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Calendar_Date">
    <rdfs:comment xml:lang="en">the year (and optionally month, or month and day). 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#date"/>
    <rdfs:domain rdf:resource="#Single_Date_Time"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Raster_Object_Type">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Raster_Object_Information"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Bearing_Reference_Direction">
    <rdfs:comment xml:lang="en">Direction from which the bearing is measured.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:domain rdf:resource="#Distance_and_Bearing_Representation"/>
    <rdfs:range>
      <owl:DataRange>
        <owl:oneOf rdf:parseType="Resource">
          <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
          >North</rdf:first>
          <rdf:rest rdf:parseType="Resource">
            <rdf:first rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >South</rdf:first>
            <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
          </rdf:rest>
        </owl:oneOf>
      </owl:DataRange>
    </rdfs:range>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="State_or_Province">
    <rdfs:comment xml:lang="en"> the state or province of the address.</rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Contact_Address"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Azimuthal_Angle">
    <rdfs:domain rdf:resource="#Oblique_Line_Azimuth"/>
    <rdfs:comment xml:lang="en">Angle measured clockwise from north, and expressed in degrees. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasCount">
    <rdfs:range rdf:resource="#Count"/>
    <rdfs:domain rdf:resource="#Raster_Object_Information"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Ordinate_Resolution">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
    <rdfs:domain rdf:resource="#Coordinate_Representation"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">The (nominal) minimum distance between the "y" or row values of two adjacent points, expressed in Planar Distance Units of measure.</rdfs:comment>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="hasPlanarCoordinateInformation">
    <rdfs:range rdf:resource="#Planar_Coordinate_Information"/>
    <rdfs:domain rdf:resource="#Planar"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="VPF_Point_and_Vector_Object_Type">
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
    <rdfs:comment xml:lang="en">name of point and vector spatial objects used to locate zero-, one-, and two-dimensional spatial locations in the data set. 
</rdfs:comment>
    <rdfs:domain rdf:resource="#VPF_Point_and_Vector_Object_Information"/>
  </owl:FunctionalProperty>
  <owl:FunctionalProperty rdf:ID="Attribute_Accuracy_Explanation">
    <rdfs:comment xml:lang="en">the identification of the test that yielded the Attribute Accuracy Value. 
</rdfs:comment>
    <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
    <rdfs:domain rdf:resource="#Quantitative_Attribute_Accuracy_Assessment"/>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#DatatypeProperty"/>
  </owl:FunctionalProperty>
  <Format_Name rdf:ID="TGRLN">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Topologically Integrated Geographic Encoding and Referencing (TIGER) Line format (Bureau of the Census) 
"VPF" Vector Product Format (National Imagery and Mapping Agency)</rdfs:comment>
  </Format_Name>
  <Type_of_Source_Media rdf:ID="filmstrip"/>
  <Map_Projection_Name rdf:ID="_van_der_Grinten"/>
  <Type_of_Source_Media rdf:ID="magnetic_tape"/>
  <DepthDatumNames rdf:ID="Mean_lower_high_water"/>
  <Maintenance_and_Update_Frequency rdf:ID="Irregular"/>
  <Map_Projection_Name rdf:ID="_Polar_Stereographic"/>
  <DepthDatumNames rdf:ID="Equatorial_springs_low_water"/>
  <DepthDatumNames rdf:ID="Mean_high_water_springs"/>
  <Browse_Graphic_File_Type rdf:ID="EMF"/>
  <DepthDatumNames rdf:ID="Approximate_lowest_astronomical_tide"/>
  <DepthDatumNames rdf:ID="Mean_lower_low_water"/>
  <DepthDatumNames rdf:ID="Columbia_River_datum"/>
  <DepthDatumNames rdf:ID="Indian_spring_low_water"/>
  <Map_Projection_Name rdf:ID="_Lambert_Conformal_Conic"/>
  <Format_Name rdf:ID="DLG">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Digital Line Graph (U.S. Geological Survey)</rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="netCDF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >network Common Data Format </rdfs:comment>
  </Format_Name>
  <Offline_Media rdf:about="#_3-1/2_inch_floppy_disk"/>
  <Format_Name rdf:ID="BIP">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Imagery, band interleaved by pixel </rdfs:comment>
  </Format_Name>
  <Place_Keyword_Thesaurus rdf:ID="Geographic_Names_Information_System"/>
  <Offline_Media rdf:about="#_5-1/4_inch_floppy_disk"/>
  <Metadata_Security_Classification rdf:ID="Restricted"/>
  <Browse_Graphic_File_Type rdf:ID="PS"/>
  <Map_Projection_Name rdf:ID="_Azimuthal_Equidistant"/>
  <DepthDatumNames rdf:ID="Mean_sea_level"/>
  <DepthDatumNames rdf:ID="Lowest_astronomical_tide"/>
  <Map_Projection_Name rdf:ID="_Miller_Cylindrical"/>
  <Map_Projection_Name rdf:ID="_Oblique_Mercator"/>
  <Maintenance_and_Update_Frequency rdf:ID="Weekly"/>
  <Address_Type rdf:ID="mailing"/>
  <Security_Classification rdf:ID="_Secret"/>
  <DepthDatumNames rdf:ID="Mean_low_water_springs"/>
  <Map_Projection_Name rdf:ID="_Equidistant_Conic"/>
  <Format_Name rdf:ID="CFF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Cartographic Feature File (U.S. Forest Service)</rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="IGES">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Initial Graphics Exchange Standard </rdfs:comment>
  </Format_Name>
  <Type_of_Source_Media rdf:ID="videocassette"/>
  <Type_of_Source_Media rdf:ID="stable-base_material"/>
  <Browse_Graphic_File_Type rdf:ID="GIF"/>
  <Format_Name rdf:ID="ARCE">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >ARC/INFO Export format </rdfs:comment>
  </Format_Name>
  <Metadata_Security_Classification rdf:ID="Secret"/>
  <Type_of_Source_Media rdf:ID="audiocassette"/>
  <Type_of_Source_Media rdf:ID="transparency"/>
  <Type_of_Source_Media rdf:ID="CD-ROM">
    <rdf:type rdf:resource="#Offline_Media"/>
  </Type_of_Source_Media>
  <AltitudeDatumNames rdf:ID="National_Geodetic_Vertical_Datum_of_1929"/>
  <DepthDatumNames rdf:ID="Lowest_low_water"/>
  <DepthDatumNames rdf:ID="Gulf_Coast_low_water_datum"/>
  <DepthDatumNames rdf:ID="Spring_tide"/>
  <Format_Name rdf:ID="RVC">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Raster Vector Converted format (MicroImages)</rdfs:comment>
  </Format_Name>
  <PlanarDistanceUnits rdf:ID="international_feet"/>
  <Metadata_Security_Classification rdf:ID="Confidential"/>
  <Maintenance_and_Update_Frequency rdf:ID="Monthly"/>
  <Security_Classification rdf:ID="_Top_secret"/>
  <DepthDatumNames rdf:ID="Mean_higher_high_water"/>
  <Type_of_Source_Media rdf:ID="electronic_bulletin_board"/>
  <Format_Name rdf:ID="BSQ">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Imagery, band interleaved sequential </rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="DEM">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Digital Elevation Model format (U.S. Geological 
Survey) </rdfs:comment>
  </Format_Name>
  <Maintenance_and_Update_Frequency rdf:ID="Unknown"/>
  <Format_Name rdf:ID="DIGEST">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Digital Geographic Information Exchange Standard </rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="DWG">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >AutoCAD Drawing format </rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="DTED">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Digital Terrain Elevation Data (MIL-D-89020) </rdfs:comment>
  </Format_Name>
  <DepthDatumNames rdf:ID="Chart_datum-datum_for_sounding_reduction"/>
  <Format_Name rdf:ID="ERDAS">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >ERDAS image files (ERDAS Corporation)</rdfs:comment>
  </Format_Name>
  <Browse_Graphic_File_Type rdf:ID="WMF"/>
  <Format_Name rdf:ID="CDF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Common Data Format </rdfs:comment>
  </Format_Name>
  <AltitudeDistanceUnits rdf:ID="_meters"/>
  <HorizontalDatumNames rdf:ID="North_American_Datum_of_1983"/>
  <DepthDatumNames rdf:ID="Mean_low_water_neap"/>
  <Type_of_Source_Media rdf:ID="microfilm"/>
  <AltitudeDistanceUnits rdf:ID="feet"/>
  <DepthDatumNames rdf:ID="Low_water"/>
  <Offline_Media rdf:about="#_1/4-inch_cartridge_tape"/>
  <Type_of_Source_Media rdf:ID="videotape"/>
  <Format_Name rdf:ID="ASCII">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >ASCII file, formatted for text attributes, declared format </rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="DGN">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Microstation format (Intergraph Corporation)</rdfs:comment>
  </Format_Name>
  <DepthDatumNames rdf:ID="Mean_low_water"/>
  <Recording_Format rdf:ID="tar"/>
  <DepthDatumNames rdf:ID="Low-water_full_and_charge"/>
  <Map_Projection_Name rdf:ID="_Transverse_Mercator"/>
  <Metadata_Security_Classification rdf:ID="Sensitive"/>
  <Map_Projection_Name rdf:ID="_Sinusoidal"/>
  <PlanarDistanceUnits rdf:ID="meters"/>
  <AltitudeDatumNames rdf:ID="North_American_Vertical_Datum_of_1988"/>
  <DepthDatumNames rdf:ID="Local_surface"/>
  <Map_Projection_Name rdf:ID="_Stereographic"/>
  <Map_Projection_Name rdf:ID="_Mercator"/>
  <HorizontalDatumNames rdf:ID="North_American_Datum_of_1927"/>
  <Type_of_Source_Media rdf:ID="online"/>
  <Format_Name rdf:ID="RPF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Raster Product Format (National Imagery and Mapping Agency)</rdfs:comment>
  </Format_Name>
  <Type_of_Source_Media rdf:ID="physical_model"/>
  <DepthDatumNames rdf:ID="Highest_astronomical_tide"/>
  <DepthDatumNames rdf:ID="Tropic_lower_low_water"/>
  <Address_Type rdf:ID="mailing_and_physical"/>
  <Currentness_Reference rdf:ID="publication_date"/>
  <Metadata_Security_Classification rdf:ID="Unclassified"/>
  <Type_of_Source_Media rdf:ID="paper"/>
  <Format_Name rdf:ID="SDTS">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Spatial Data Transfer Standard (Federal Information Processing Standard 173)</rdfs:comment>
  </Format_Name>
  <DepthDatumNames rdf:ID="Mean_high_water_neap"/>
  <DepthDatumNames rdf:ID="Mean_higher_low_water"/>
  <Browse_Graphic_File_Type rdf:ID="PBM"/>
  <Security_Classification rdf:ID="_Unclassified"/>
  <Format_Name rdf:ID="MOSS">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Multiple Overlay Statistical System export file</rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="GRASS">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Geographic Resources Analysis Support System</rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="NITF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >National Imagery Transfer Format </rdfs:comment>
  </Format_Name>
  <Type_of_Source_Media rdf:ID="computer_program"/>
  <Format_Name rdf:ID="ARCG">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >ARC/INFO Generate format </rdfs:comment>
  </Format_Name>
  <DepthDatumNames rdf:ID="Mean_high_water"/>
  <Recording_Format rdf:ID="cpio"/>
  <Maintenance_and_Update_Frequency rdf:ID="Continually"/>
  <DepthDatumNames rdf:ID="Lowest_normal_low_water"/>
  <Map_Projection_Name rdf:ID="_Robinson"/>
  <Format_Name rdf:ID="RVF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Raster Vector Format (MicroImages)</rdfs:comment>
  </Format_Name>
  <DepthDatumNames rdf:ID="Mean_tide_level"/>
  <Map_Projection_Name rdf:ID="_General_Vertical_Near-sided_Projection"/>
  <Recording_Format rdf:ID="ISO_9660_with_Apple_HFS_extensions"/>
  <DepthDatumNames rdf:ID="No_correction"/>
  <Browse_Graphic_File_Type rdf:ID="JPEG"/>
  <Security_Classification rdf:ID="_Confidential"/>
  <Map_Projection_Name rdf:ID="_Orthographic"/>
  <Maintenance_and_Update_Frequency rdf:ID="None_planned"/>
  <Offline_Media rdf:ID="_9-track_tape"/>
  <Type_of_Source_Media rdf:ID="electronic_mail_system"/>
  <Address_Type rdf:ID="physical"/>
  <Browse_Graphic_File_Type rdf:ID="XWD"/>
  <Map_Projection_Name rdf:ID="_Polyconic"/>
  <DepthDatumNames rdf:ID="Lower_low_water"/>
  <Format_Name rdf:ID="SIF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Standard Interchange Format (DOD Project 2851)</rdfs:comment>
  </Format_Name>
  <Recording_Format rdf:ID="ISO_9660_with_Rock_Ridge_extensions"/>
  <Browse_Graphic_File_Type rdf:ID="CGM"/>
  <DepthDatumNames rdf:ID="High-water_full_and_charge"/>
  <Map_Projection_Name rdf:ID="_Modified_Stereographic_for_Alaska"/>
  <Map_Projection_Name rdf:ID="_Albers_Conical_Equal_Area"/>
  <Map_Projection_Name rdf:ID="_Space_Oblique_Mercator"/>
  <Place_Keyword_Thesaurus rdf:ID="None"/>
  <Security_Classification rdf:ID="_Sensitive"/>
  <Map_Projection_Name rdf:ID="_Lambert_Azimuthal_Equal_Area"/>
  <Offline_Media rdf:ID="_4_mm_cartridge_tape"/>
  <DepthDatumNames rdf:ID="Land_survey_datum"/>
  <Map_Projection_Name rdf:ID="_Gnomonic"/>
  <EllipsoidNames rdf:ID="Clarke_1866"/>
  <DepthDatumNames rdf:ID="Higher_high_water"/>
  <Format_Name rdf:ID="DFAD">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Digital Feature Analysis Data (National Imagery and Mapping Agency)</rdfs:comment>
  </Format_Name>
  <DepthDatumNames rdf:ID="Mean_lower_low_water_springs"/>
  <Maintenance_and_Update_Frequency rdf:ID="Daily"/>
  <Type_of_Source_Media rdf:ID="microfiche"/>
  <Format_Name rdf:ID="COORD">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >User-created coordinate file, declared format </rdfs:comment>
  </Format_Name>
  <Maintenance_and_Update_Frequency rdf:ID="As_needed"/>
  <Format_Name rdf:ID="BIL">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Imagery, band interleaved by line </rdfs:comment>
  </Format_Name>
  <DepthDatumNames rdf:ID="Low-water_datum"/>
  <Format_Name rdf:ID="HDF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Hierarchical Data Format </rdfs:comment>
  </Format_Name>
  <DepthDatumNames rdf:ID="High_water"/>
  <Currentness_Reference rdf:ID="ground_condition"/>
  <Recording_Format rdf:ID="fgdcv_Individual_221"/>
  <Recording_Format rdf:ID="High_Sierra"/>
  <Type_of_Source_Media rdf:ID="chart"/>
  <Offline_Media rdf:ID="_8_mm_cartridge_tape"/>
  <Format_Name rdf:ID="IGDS">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Interactive Graphic Design System format (Intergraph Corporation)</rdfs:comment>
  </Format_Name>
  <Format_Name rdf:ID="TIFF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Tagged Image File Format </rdfs:comment>
    <rdf:type rdf:resource="#Browse_Graphic_File_Type"/>
  </Format_Name>
  <Browse_Graphic_File_Type rdf:ID="EPS"/>
  <Type_of_Source_Media rdf:ID="disc"/>
  <Format_Name rdf:ID="SLF">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Standard Linear Format (National Imagery and Mapping Agency)</rdfs:comment>
  </Format_Name>
  <Metadata_Security_Classification rdf:ID="Top_secret"/>
  <PlanarDistanceUnits rdf:ID="survey_feet"/>
  <Type_of_Source_Media rdf:ID="cartridge_tape"/>
  <Security_Classification rdf:ID="_Restricted"/>
  <DepthDatumNames rdf:ID="Neap_tide"/>
  <Map_Projection_Name rdf:ID="_Equirectangular"/>
  <EllipsoidNames rdf:ID="Geodetic_Reference_System_80"/>
  <Maintenance_and_Update_Frequency rdf:ID="Annually"/>
</rdf:RDF>

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