<http://caligraph.org/ontology/Crossing_of_Rock_Creek_(Potomac_River_tributary)>	<http://www.w3.org/2000/01/rdf-schema#label>	"Crossing of Rock Creek (Potomac River tributary)" .
<http://caligraph.org/ontology/Crossing_of_Rock_Creek_(Potomac_River_tributary)>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_crossing_in_the_United_States> .
<http://caligraph.org/ontology/Crossing_of_Rock_Creek_(Potomac_River_tributary)>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Crossings_of_Rock_Creek_(Potomac_River_tributary)> .
<http://caligraph.org/ontology/Crossing_of_Rock_Creek_(Potomac_River_tributary)>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Crossing_of_Rock_Creek_(Potomac_River_tributary)>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Crossing_in_the_United_States> .
<http://caligraph.org/ontology/Crossing_of_Rock_Creek_(Potomac_River_tributary)>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_crossings_of_Rock_Creek> .