<http://caligraph.org/ontology/Ship_sunk_by_non-combat_internal_explosions>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Shipwreck> .
<http://caligraph.org/ontology/Ship_sunk_by_non-combat_internal_explosions>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Ships_sunk_by_non-combat_internal_explosions> .
<http://caligraph.org/ontology/Ship_sunk_by_non-combat_internal_explosions>	<http://www.w3.org/2000/01/rdf-schema#label>	"Ship sunk by non-combat internal explosions" .
<http://caligraph.org/ontology/Ship_sunk_by_non-combat_internal_explosions>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .