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<http://caligraph.org/ontology/Installation_of_the_United_States_Air_Force_in_South_Dakota>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Installations_of_the_United_States_Air_Force_in_South_Dakota> .
<http://caligraph.org/ontology/Installation_of_the_United_States_Air_Force_in_South_Dakota>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Installation_of_the_United_States_Air_Force> .
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<http://caligraph.org/ontology/Installation_of_the_United_States_Air_Force_in_South_Dakota>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Military_installation_in_South_Dakota> .