<http://caligraph.org/ontology/Play_set_in_the_18th_century>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Plays_set_in_the_18th_century> .
<http://caligraph.org/ontology/Play_set_in_the_Russian_Empire>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Play_set_in_the_18th_century> .
<http://caligraph.org/ontology/Play_set_in_the_18th_century>	<http://www.w3.org/2000/01/rdf-schema#label>	"Play set in the 18th century" .
<http://caligraph.org/ontology/Play_set_in_the_18th_century>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Work_set_in_the_18th_century> .
<http://caligraph.org/ontology/Play_set_in_the_18th_century>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Play> .
<http://caligraph.org/ontology/Play_set_in_the_18th_century>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .