<?xml version="1.0"?>
<?xml-stylesheet href="http://www.w3.org/2002/06/rdfs2html.xsl" type="application/xml"?>
<!DOCTYPE owl [
  <!ENTITY itt   "http://daml.umbc.edu/ontologies/ittalks/2.1/">
  <!ENTITY cobra "http://daml.umbc.edu/ontologies/cobra/0.4/">
  <!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 foaf  "http://daml.umbc.edu/ontologies/cobra/0.4/foaf-basic#">
  <!ENTITY talk  "http://daml.umbc.edu/ontologies/ittalks/2.1/talk#"> 
  <!ENTITY spkr  "http://daml.umbc.edu/ontologies/ittalks/2.1/speaker#"> 
  ]>

<rdf:RDF  
   xmlns:rdf  = "&rdf;"
   xmlns:rdfs = "&rdfs;"
   xmlns:owl  = "&owl;"
   xmlns:xsd  = "&xsd;"
   xmlns:foaf = "&foaf;"
   xmlns:talk = "&talk;"
   xmlns      = "&spkr;"
   xml:base   = "http://daml.umbc.edu/ontologies/ittalks/2.1/speaker">
  
  <owl:Ontology rdf:about="&itt;speaker">
    <owl:versionInfo>2.1</owl:versionInfo>
    <owl:imports rdf:resource="&cobra;foaf-basic"/>
    <owl:imports rdf:resource="&itt;talk"/>
  </owl:Ontology>  
  <!--
      Last modified by Harry Chen (mailto:harry.chen@umbc.edu)
      CVS Version: $Revision: 1.5 $, $Date: 2003/10/25 04:30:21 $
  -->
  
  <owl:Class rdf:ID="Speaker">
    <rdfs:label>Speaker</rdfs:label>
    <rdfs:subClassOf rdf:resource="&foaf;Person"/>
  </owl:Class>
    
  <owl:DatatypeProperty rdf:ID="bioSketch">
    <rdfs:domain rdf:resource="#Speaker"/>
    <rdfs:range rdf:resource="&xsd;string" />
  </owl:DatatypeProperty>

  <owl:DatatypeProperty rdf:ID="professionalTitle">
    <rdfs:domain rdf:resource="#Speaker"/>
    <rdfs:range rdf:resource="&xsd;string" />
  </owl:DatatypeProperty>
  
  <owl:DatatypeProperty rdf:ID="expertise">
    <rdfs:domain rdf:resource="#Speaker"/>
    <rdfs:range rdf:resource="&xsd;string" />
  </owl:DatatypeProperty>

  <owl:ObjectProperty rdf:ID="speakerOf">
    <rdfs:domain rdf:resource="#Speaker"/>
    <rdfs:range rdf:resource="&talk;Talk"/>
  </owl:ObjectProperty>

</rdf:RDF>
