<http://caligraph.org/ontology/Tank_introduced_in_1938>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Military_vehicle_introduced_in_the_1930s> .
<http://caligraph.org/ontology/Military_vehicle_introduced_in_the_1930s>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Military_vehicles_introduced_in_the_1930s> .
<http://caligraph.org/ontology/Military_vehicle_introduced_in_the_1930s>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Military_vehicle_introduced_in_the_1930s>	<http://www.w3.org/2000/01/rdf-schema#label>	"Military vehicle introduced in the 1930s" .
<http://caligraph.org/ontology/Tank_introduced_in_1939>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Military_vehicle_introduced_in_the_1930s> .
<http://caligraph.org/ontology/Military_vehicle_introduced_in_the_1930s>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Military_vehicle_of_the_interwar_period> .
<http://caligraph.org/ontology/Military_vehicle_introduced_in_the_1930s>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Vehicle_introduced_in_the_1930s> .
<http://caligraph.org/ontology/Tank_introduced_in_1937>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Military_vehicle_introduced_in_the_1930s> .