<http://caligraph.org/ontology/Metalcore_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Peccatum_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Extreme_metal_compilation_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Extreme_metal_album>	<http://www.w3.org/2000/01/rdf-schema#label>	"Extreme metal album" .
<http://caligraph.org/ontology/Black_metal_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Live_extreme_metal_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Loch_Vostok_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Death_metal_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Extreme_metal_album>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Extreme_metal_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album> .
<http://caligraph.org/ontology/Extreme_metal_video_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Doom_metal_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Extreme_metal_album>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Extreme_metal_albums> .
<http://caligraph.org/ontology/Grindcore_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .
<http://caligraph.org/ontology/Thrash_metal_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extreme_metal_album> .