<http://caligraph.org/ontology/Crater-class_cargo_ship>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Crater-class_cargo_ships> .
<http://caligraph.org/ontology/Crater-class_cargo_ship>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Auxiliary_transport_ship_class> .
<http://caligraph.org/ontology/Crater-class_cargo_ship>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Auxiliary_ship_class_of_the_United_States_Navy> .
<http://caligraph.org/ontology/Crater-class_cargo_ship>	<http://www.w3.org/2000/01/rdf-schema#label>	"Crater-class cargo ship" .
<http://caligraph.org/ontology/Crater-class_cargo_ship>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Cargo_ship_of_the_United_States_Navy> .
<http://caligraph.org/ontology/Crater-class_cargo_ship>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Crater-class_cargo_ship>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Liberty_ship> .