<http://caligraph.org/ontology/Sibling_duo>	<http://www.w3.org/2000/01/rdf-schema#label>	"Sibling duo" .
<http://caligraph.org/ontology/Sister_duo>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Sibling_duo> .
<http://caligraph.org/ontology/Sibling_musical_duo>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Sibling_duo> .
<http://caligraph.org/ontology/Brother_duo>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Sibling_duo> .
<http://caligraph.org/ontology/Sibling_duo>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Sibling_duo>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Duo> .
<http://caligraph.org/ontology/Sibling_duo>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Sibling_duos> .