<?xml version="1.0"?>
<!DOCTYPE rdf:RDF [
     <!ENTITY rdf  "http://www.w3.org/1999/02/22-rdf-syntax-ns#" >
     <!ENTITY rdfs "http://www.w3.org/2000/01/rdf-schema#" >
     <!ENTITY xsd  "http://www.w3.org/2001/XMLSchema#" >
     <!ENTITY owl  "http://www.w3.org/2002/07/owl#" >
     <!ENTITY time "http://www.isi.edu/~pan/damltime/time.owl#">
     <!ENTITY place "http://daml.umbc.edu/ontologies/cobra/0.3/place#">
     <!ENTITY event "http://daml.umbc.edu/ontologies/ittalks/event#" >
     <!ENTITY assert "http://daml.umbc.edu/ontologies/ittalks/assertions#" >
   ]>


<rdf:RDF
  xmlns:rdf    = "&rdf;"
  xmlns:rdfs   = "&rdfs;"
  xmlns:owl    = "&owl;"
  xmlns:time   = "&time;"
  xmlns:place  = "&place;"
  xmlns:event  = "&event;"
  xmlns:assert = "&assert;"
  xmlns        = "&assert;"
  xml:base     = "http://daml.umbc.edu/ontologies/ittalks/assertions#"
>

<owl:Ontology rdf:about="">
  <owl:imports rdf:resource="http://daml.umbc.edu/ontologies/ittalks/event"/>
  <rdfs:comment>
	This file asserts the relations between ittalk classes and external classes.

	This ontology is created by 
		Li Ding -- http://www.csee.umbc.edu/~dingli1/,
	        Harry Chen -- http://www.csee.umbc.edu/~hchen4/,
		Lalana Kagal -- http://www.cs.umbc.edu/~lkagal1/, 
		Tim Finin -- http://www.csee.umbc.edu/~finin/. 
  </rdfs:comment>
  <owl:versionInfo>$Revision: 1.1 $</owl:versionInfo>
</owl:Ontology>

<owl:Class rdf:about="&event;Place">
  <owl:equivalentClass rdf:resource ="&place;Place"/>
</owl:Class>

<owl:Class rdf:about="&event;Instant">
  <owl:equivalentClass rdf:resource ="&time;Instant"/>
</owl:Class>


</rdf:RDF>
