<http://caligraph.org/ontology/Alternative_rock_ballad>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Rock_ballad> .
<http://caligraph.org/ontology/Hard_rock_ballad>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Rock_ballad> .
<http://caligraph.org/ontology/Rock_ballad>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Rock_ballad>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Sentimental_ballad> .
<http://caligraph.org/ontology/Rock_ballad>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Rock_ballads> .
<http://caligraph.org/ontology/Rock_ballad>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/RestrictionHasValue_genre_Rock%20music> .
<http://caligraph.org/ontology/Heavy_metal_ballad>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Rock_ballad> .
<http://caligraph.org/ontology/Rock_ballad>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rock_ballads> .
<http://caligraph.org/ontology/Rock_ballad>	<http://www.w3.org/2000/01/rdf-schema#label>	"Rock ballad" .