<http://caligraph.org/ontology/American_operetta_composer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/American_opera_composer> .
<http://caligraph.org/ontology/American_opera_composer>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:American_opera_composers> .
<http://caligraph.org/ontology/American_opera_composer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Opera_composer> .
<http://caligraph.org/ontology/American_opera_composer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/American_classical_composer> .
<http://caligraph.org/ontology/American_opera_composer>	<http://www.w3.org/2000/01/rdf-schema#label>	"American opera composer" .
<http://caligraph.org/ontology/African-American_opera_composer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/American_opera_composer> .
<http://caligraph.org/ontology/American_musical_theatre_composer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/American_opera_composer> .
<http://caligraph.org/ontology/Puerto_Rican_opera_composer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/American_opera_composer> .
<http://caligraph.org/ontology/American_opera_composer>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .