<http://caligraph.org/ontology/1950s_Polish_sailplane>	<http://www.w3.org/2000/01/rdf-schema#label>	"1950s Polish sailplane" .
<http://caligraph.org/ontology/1950s_Polish_sailplane>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1950s_sailplane> .
<http://caligraph.org/ontology/1950s_Polish_sailplane>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:1950s_Polish_sailplanes> .
<http://caligraph.org/ontology/1950s_Polish_sailplane>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/1950s_Polish_sailplane>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/RestrictionHasValue_origin_Poland> .