<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:daml   = "http://www.daml.org/2001/03/daml+oil#" 
  xmlns:place  = "http://daml.umbc.edu/ontologies/place-ont#"
  xmlns:person = "http://daml.umbc.edu/ontologies/person-ont#"
  xmlns:time   = "http://daml.umbc.edu/ontologies/calendar-ont#"
  xmlns       = "http://daml.umbc.edu/ontologies/talk-ont#"
>

<daml:Ontology rdf:about="">
  <daml:versionInfo>$Revision: 1.1.1.1 $</daml:versionInfo>
  <daml:imports rdf:resource="http://daml.umbc.edu/ontologies/place-ont"/>
  <daml:imports rdf:resource="http://daml.umbc.edu/ontologies/person-ont"/>
  <daml:imports rdf:resource="http://daml.umbc.edu/ontologies/calendar-ont"/>
  <daml:imports rdf:resource="http://www.daml.org/2001/03/daml+oil#"/>
</daml:Ontology>

<daml:Class rdf:ID="X-URI">
  <daml:label>Uniform Resource Indicator</daml:label>
  <daml:subClassOf rdf:resource="http://www.daml.org/2001/03/daml+oil#Literal" />
</daml:Class>

<!-- Class Event -->

<daml:Class rdf:ID="Event">
  <daml:label>Event</daml:label>
</daml:Class>

<rdf:Property rdf:ID="Location">
  <daml:domain rdf:resource="#Event"/>
  <daml:range rdf:resource="http://daml.umbc.edu/ontologies/place-ont#Place" />
  <daml:minCardinality>1</daml:minCardinality>
</rdf:Property>

<rdf:Property rdf:ID="BeginTime">
  <daml:domain rdf:resource="#Event"/>
  <daml:range rdf:resource="http://daml.umbc.edu/ontologies/calendar-ont#Calendar" />
  <daml:cardinality>1</daml:cardinality>
</rdf:Property>

<rdf:Property rdf:ID="EndTime">
  <rdfs:domain rdf:resource="#Event"/>
  <rdfs:range rdf:resource="http://daml.umbc.edu/ontologies/calendar-ont#Calendar" />
  <daml:cardinality>1</daml:cardinality>
</rdf:Property>

<!-- end of Class Event -->

<!-- Class Talk -->

<daml:Class rdf:ID="Talk">
  <daml:subClassOf rdf:resource="#Event" />
</daml:Class>

<rdf:Property rdf:ID="Speaker">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="http://daml.umbc.edu/ontologies/person-ont#Person" />
  <daml:minCardinality>1</daml:minCardinality>
</rdf:Property>

<rdf:Property rdf:ID="Host">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="http://daml.umbc.edu/ontologies/person-ont#Person" />
  <daml:minCardinality>1</daml:minCardinality>
</rdf:Property>

<rdf:Property rdf:ID="Title">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="http://www.daml.org/2001/03/daml+oil#Literal" />
  <daml:cardinality>1</daml:cardinality>
</rdf:Property>

<rdf:Property rdf:ID="Abstract">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="http://www.daml.org/2001/03/daml+oil#Literal" />
  <daml:maxCardinality>1</daml:maxCardinality>
</rdf:Property>

<rdf:Property rdf:ID="Topic">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="http://www.daml.org/2001/03/daml+oil#Literal" />
  <daml:minCardinality>1</daml:minCardinality>
</rdf:Property>

<rdf:Property rdf:ID="DAML-URI">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="#X-URI" />
</rdf:Property>

<rdf:Property rdf:ID="HTML-URI">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="#X-URI" />
</rdf:Property>

<rdf:Property rdf:ID="RelatedURI">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="#X-URI" />
</rdf:Property>

<rdf:Property rdf:ID="Video">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="#X-URI" />
</rdf:Property>

<rdf:Property rdf:ID="Audio">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="#X-URI" />
</rdf:Property>

<rdf:Property rdf:ID="Presentation">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="#X-URI" />
</rdf:Property>

<rdf:Property rdf:ID="Media">
  <rdfs:domain rdf:resource="#Talk"/>
  <rdfs:range rdf:resource="http://www.daml.org/2001/03/daml+oil#Literal" />
</rdf:Property>

<!-- end of Class Talk -->

</rdf:RDF>