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<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Aircraft first flown in 1957"@en .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://dbpedia.org/ontology/wikiPageRevisionID>	"949060686"^^<http://www.w3.org/2001/XMLSchema#integer> .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://www.w3.org/2000/01/rdf-schema#label>	"Aircraft first flown in 1957"@en .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Aircraft_first_flown_in_1957?oldid=949060686&ns=14> .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://www.w3.org/2004/02/skos/core#broader>	<http://dbpedia.org/resource/Category:1950s_aircraft> .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://dbpedia.org/property/wikiPageUsesTemplate>	<http://dbpedia.org/resource/Template:Navseasoncats> .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2004/02/skos/core#Concept> .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://www.w3.org/2004/02/skos/core#broader>	<http://dbpedia.org/resource/Category:Vehicles_introduced_in_1957> .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://www.w3.org/2004/02/skos/core#broader>	<http://dbpedia.org/resource/Category:1957_in_aviation> .
<http://dbpedia.org/resource/Category:Aircraft_first_flown_in_1957>	<http://dbpedia.org/ontology/wikiPageID>	"54108189"^^<http://www.w3.org/2001/XMLSchema#integer> .