<http://caligraph.org/ontology/Proto-prog_song>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Proto-prog_song>	<http://www.w3.org/2000/01/rdf-schema#label>	"Proto-prog song" .
<http://caligraph.org/ontology/Proto-prog_song>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Proto-prog_songs> .
<http://caligraph.org/ontology/Proto-prog_song>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Progressive_music_song> .
<http://caligraph.org/ontology/King_Crimson_song>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Proto-prog_song> .
<http://caligraph.org/ontology/Pink_Floyd_song>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Proto-prog_song> .