<http://caligraph.org/ontology/Boeing_B-17_Flying_Fortress_variant>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Boeing_B-17_Flying_Fortress_variant>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_Boeing_B-17_Flying_Fortress_variants> .
<http://caligraph.org/ontology/Boeing_B-17_Flying_Fortress_variant>	<http://www.w3.org/2000/01/rdf-schema#label>	"Boeing B-17 Flying Fortress variant" .
<http://caligraph.org/ontology/Boeing_B-17_Flying_Fortress_variant>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Aircraft_variant> .