<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Tourist_attractions_in_Middlesex_County,_Massachusetts> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/July_1981_sports_event_in_the_United_States> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://caligraph.org/ontology/tennisSurfaceType>	"Clay/ outdoor" .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Tennis_tournament_in_Massachusetts> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://caligraph.org/ontology/category>	<http://caligraph.org/resource/Grand_Prix_tennis_circuit> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Sport_in_Middlesex_County,_Massachusetts> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://caligraph.org/ontology/budget>	"175000.0" .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Tourist_attraction_in_Middlesex_County,_Massachusetts> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Tennis_tournaments_in_Massachusetts> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://caligraph.org/ontology/championInDoubleMale>	<http://caligraph.org/resource/Pavel_Slo%C5%BEil> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:July_1981_sports_events_in_the_United_States> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://caligraph.org/ontology/championInSingleMale>	<http://caligraph.org/resource/Jos%C3%A9_Luis_Clerc> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Massachusetts> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/1981_Grand_Prix_(tennis)> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/1981_U.S._Pro_Tennis_Championships> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Sports_in_Middlesex_County,_Massachusetts> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/2004/02/skos/core#altLabel>	"U.S. Pro Tennis Championships" .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://caligraph.org/ontology/championInDoubleMale>	<http://caligraph.org/resource/Ra%C3%BAl_Ram%C3%ADrez> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Chestnut_Hill,_Massachusetts> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"1981 U.S. Pro Tennis Championships" .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Clay_court_tennis_tournaments> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Clay_court_tennis_tournament> .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/2004/02/skos/core#altLabel>	"1981" .
<http://caligraph.org/resource/1981_U.S._Pro_Tennis_Championships>	<http://www.w3.org/2000/01/rdf-schema#label>	"1981 U.S. Pro Tennis Championships" .