<http://caligraph.org/ontology/British_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/British_opera_singer> .
<http://caligraph.org/ontology/21st-century_British_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/British_male_opera_singer> .
<http://caligraph.org/ontology/20th-century_British_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/British_male_opera_singer> .
<http://caligraph.org/ontology/Scottish_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/British_male_opera_singer> .
<http://caligraph.org/ontology/British_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Male_opera_singer> .
<http://caligraph.org/ontology/Welsh_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/British_male_opera_singer> .
<http://caligraph.org/ontology/British_male_opera_singer>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/18th-century_British_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/British_male_opera_singer> .
<http://caligraph.org/ontology/British_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/British_male_singer> .
<http://caligraph.org/ontology/19th-century_British_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/British_male_opera_singer> .
<http://caligraph.org/ontology/British_male_opera_singer>	<http://www.w3.org/2000/01/rdf-schema#label>	"British male opera singer" .
<http://caligraph.org/ontology/British_male_opera_singer>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:British_male_opera_singers> .