<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Rock_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Doom_metal_album_by_Welsh_artists>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Metalcore_album_by_Welsh_artists>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Death_metal_album_by_Welsh_artists>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Budgie_(band)_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Alternative_metal_album_by_Welsh_artists>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Tigertailz_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Black_metal_album_by_Welsh_artists>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Heavy_metal_albums_by_Welsh_artists> .
<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_British_artists> .
<http://caligraph.org/ontology/Crys_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Tredegar_(band)_album>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists> .
<http://caligraph.org/ontology/Heavy_metal_album_by_Welsh_artists>	<http://www.w3.org/2000/01/rdf-schema#label>	"Heavy metal album by Welsh artists" .