<http://caligraph.org/ontology/Social_class>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Social_classes> .
<http://caligraph.org/ontology/Social_class_in_ancient_Rome>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Social_class> .
<http://caligraph.org/ontology/Social_class>	<http://www.w3.org/2000/01/rdf-schema#label>	"Social class" .
<http://caligraph.org/ontology/Social_class>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://www.w3.org/2002/07/owl#Thing> .
<http://caligraph.org/ontology/Social_class>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Social_class_in_the_Ottoman_Empire>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Social_class> .