<http://dbpedia.org/resource/Keystone_B-4>	<http://dbpedia.org/ontology/predecessor>	<http://dbpedia.org/resource/Keystone_B-3> .
<http://dbpedia.org/resource/Keystone_B-4>	<http://dbpedia.org/ontology/numberBuilt>	"25"^^<http://www.w3.org/2001/XMLSchema#integer> .
<http://dbpedia.org/resource/Keystone_B-4>	<http://dbpedia.org/ontology/numberBuilt>	"5"^^<http://www.w3.org/2001/XMLSchema#integer> .
<http://dbpedia.org/resource/Keystone_B-4>	<http://www.w3.org/2000/01/rdf-schema#comment>	"The Keystone B-4 was a biplane bomber produced for the United States Army Air Corps."@en .
<http://dbpedia.org/resource/Keystone_B-4>	<http://dbpedia.org/ontology/type>	<http://dbpedia.org/resource/Light_bomber> .
<http://dbpedia.org/resource/Keystone_B-4>	<http://dbpedia.org/ontology/manufacturer>	<http://dbpedia.org/resource/Keystone_Aircraft> .