<owl:Ontology rdf:about="">
	<owl:versionInfo>course.owl, v.1.0; 2006-04-01</owl:versionInfo>
	<owl:imports rdf:resource="http://www.w3.org/2002/07/owl"/>
</owl:Ontology>

<owl:Class rdf:ID="Course">
	<rdfs:subClassOf rdf:resource="#School"/>
	<owl:equivalentClass rdf:resource="#Subject"/>
	<rdfs:subClassOf>
  	<owl:Restriction>
		<owl:onProperty rdf:resource="#hasCourseCategory"/>
		<owl:cardinality>13</owl:cardinality>
  </owl:Restriction>
 </rdfs:subClassOf>
</owl:Class>