<http://caligraph.org/resource/Catherine_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Maddox_Branch>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/River_border_of_U.S._states> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_river_borders_of_U.S._states> .
<http://caligraph.org/resource/Scott%20Run_(16805502)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Tributaries_of_the_Chesapeake_Bay> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"North Fork of the South Branch of the Potomac River" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac River#North Branch Potomac River" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac river" .
<http://caligraph.org/resource/Plum_Run_(Rock_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Meadow_Branch>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_the_United_States:_P> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_the_Americas_by_coastline> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Rivers_of_Maryland> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Rivers_of_Maryland_by_county> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_the_Americas> .
<http://caligraph.org/resource/Washington_Channel>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Cacapon_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Upper_Cedar_Point_Light>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Hunting_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Coan_River>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Ragged_Point_Light>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/South_Branch_Potomac_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cabin_John,_Maryland>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cuckold%20Creek_(19461713)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/United_States> .
<http://caligraph.org/resource/Aquia_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Bullneck%20Run_(16934769)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Hull_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Hunting_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Index_of_Virginia-related_articles> .
<http://caligraph.org/resource/Ripps_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Daniels_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac River#North Fork South Branch Potomac River" .
<http://caligraph.org/resource/Hull_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/United_States> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Fair_Grounds_Stakes> .
<http://caligraph.org/resource/Sleepy_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_Maryland> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_the_United_States:_N> .
<http://caligraph.org/resource/Bear_Island_(Maryland)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_the_United_States:_S> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"the river" .
<http://caligraph.org/resource/Back_Creek_(Conococheague_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dans_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Rattlesnake%20Run_(22287163)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Hampshire_County,_West_Virginia> .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Northumberland_County,_Virginia> .
<http://caligraph.org/resource/Mattawoman_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cobb_Point_Bar_Light>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Chesapeake_Bay_Interpretive_Buoy_System> .
<http://caligraph.org/resource/Byrnes%20Island_(17442442)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Branch Potomac River" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_West_Virginia> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac River#watershed" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomack" .
<http://caligraph.org/resource/Maryland_Route_17>	<http://caligraph.org/ontology/routeStart>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Northumberland_County,_Virginia> .
<http://caligraph.org/resource/Pinehurst_Branch>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Neabsco_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Chicamacomico_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Tuscarora_Creek_(Monocacy_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Lowes_Island,_Virginia>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cold_Spring_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dogue_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Yeocomico_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Maryland_Route_6>	<http://caligraph.org/ontology/routeStart>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/George_Mason_III>	<http://caligraph.org/ontology/deathPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Rosilie%20Island_(24041549)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Windy_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mill_Creek_(Opequon_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Piney_Run_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cox_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cobb_Island_(Maryland)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Watersheds_of_North_America> .
<http://caligraph.org/resource/Watts_Branch_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Neabsco_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Powhatan%20Island_(22149515)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Berkeley_County,_West_Virginia> .
<http://caligraph.org/ontology/RestrictionHasValue_riverMouth_Potomac%20River>	<http://www.w3.org/2002/07/owl#hasValue>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mill_Creek_(South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Pinehurst_Branch>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Stoney%20Run_(22539210)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Georges_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potowmac river" .
<http://caligraph.org/resource/Kettle_Creek_(South_Fork_South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Anacostia_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_whitewater_rivers> .
<http://caligraph.org/resource/Foundry_Branch>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dots%20Island_(23156126)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Rivers_of_Virginia> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Rivers_of_Virginia_by_county> .
<http://caligraph.org/resource/Potomac_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Heron_Island_(Maryland)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Abel_P._Upshur>	<http://caligraph.org/ontology/deathPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cedar_Island_Wildlife_Management_Area>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Oxon_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Tidal_Basin>	<http://caligraph.org/ontology/inflow>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Knotts_Island,_North_Carolina>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Fifteenmile_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Tiber_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Conococheague_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Sleepy%20Creek%20Islands_(19167018)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Maryland_Point_Light>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mill_Creek_(Patterson_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Chopawamsic>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Construction_of_the_Virginia_approaches_to_Arlington_Memorial_Bridge>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Middle_Creek_(Opequon_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Purslane%20Run_(20878728)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cod%20Creek_(17464700)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Foundry_Branch>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Flintstone,_Maryland>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mattawoman_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Clarks%20Branch_(19562718)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Limestone_Run_(North_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Accokeek_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/River_of_West_Virginia> .
<http://caligraph.org/resource/Mill_Run_(South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Four_Mile_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Chesapeake_Bay> .
<http://caligraph.org/resource/Port_Tobacco_River>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Chain_Bridge_(Potomac_River)>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Tilhance_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Evitts_Creek_(North_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Stevens_Run_(Rock_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/South_River_(South_Fork_Shenandoah_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/ontology/RestrictionHasValue_crosses_Potomac%20River>	<http://www.w3.org/2002/07/owl#hasValue>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Woodrow_Wilson_Bridge>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Monocacy_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Daingerfield%20Island_(17804881)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Aqueduct_Bridge_(Potomac_River)>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Wisteria%20Run_(17482932)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/North_Branch_Potomac_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Construction_of_Arlington_Memorial_Bridge>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Isaac_Parsons_(Virginia_politician)>	<http://caligraph.org/ontology/deathPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/River_of_Washington,_D.C.> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/River_of_Virginia> .
<http://caligraph.org/resource/Tearcoat_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Elk_Run,_Virginia>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac Gorge" .
<http://caligraph.org/resource/Little_Tonoloway_Creek_(Pennsylvania)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Port_Tobacco_River>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mattawoman_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Branch of the Potomac River" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Upper Patawomeck (Potomac) River" .
<http://caligraph.org/resource/14th_Street_bridges>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Quantico_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Broad_Run_(Loudoun_County,_Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Theodore_Roosevelt_Bridge>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Snake%20Island_(17014728)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"river" .
<http://caligraph.org/resource/Lost_River_(Cacapon_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Blocher\u0027s_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Battle_of_Mine_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Nanjemoy_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Birdsaw%20Island_(19854898)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Patowmack" .
<http://caligraph.org/resource/Opequon_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Quantico_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Branch Potomac" .
<http://caligraph.org/resource/Rockwell_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Hunting_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Willett%20Run_(23237574)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Coan_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Index_of_Maryland-related_articles> .
<http://caligraph.org/resource/Middle_River_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Piss_Pot_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Environment_of_West_Virginia> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Potomac River" .
<http://caligraph.org/resource/Savage_River_(Maryland)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Winebrenner_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Watkins%20Island_(20882259)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Piccowaxen%20Creek_(21014679)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Trout_Run_(Cacapon_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Borders_of_West_Virginia> .
<http://caligraph.org/resource/B_&_O_Railroad_Potomac_River_Crossing>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac region" .
<http://caligraph.org/resource/Construction_of_Arlington_Memorial_Bridge>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Turkey_Run_Wildlife_Management_Area>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Grapevine%20Island_(20761945)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mill_Branch_(Cacapon_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Island_(District_of_Columbia)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Cohongaronta" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Chesapeake_Bay_river> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Border_of_Virginia> .
<http://caligraph.org/resource/Israel%20Creek_(16863176)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Quarter%20Branch_(20551121)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"The Potomac" .
<http://caligraph.org/resource/Spout_Run>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Rock_Creek_(Monocacy_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Seneca_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/ontology/RestrictionHasValue_location_Potomac%20River>	<http://www.w3.org/2002/07/owl#hasValue>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Dry_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Linganore_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Spout_Run>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Governor_Harry_W._Nice_Memorial_Bridge>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_Virginia> .
<http://caligraph.org/resource/High_Island_(Michigan)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/American_Legion_Memorial_Bridge_(Potomac_River)>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Abram_Creek_(West_Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Gulf_Branch>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Longest_river_in_the_United_States> .
<http://caligraph.org/resource/Marsh_Creek_(Monocacy_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Columbia_Island_(District_of_Columbia)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South-Branch Valley" .
<http://caligraph.org/resource/Gambo%20Creek_(23724117)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac River#Potomac_River_watershed" .
<http://caligraph.org/resource/Brushy_Fork_Lake>	<http://caligraph.org/ontology/outflow>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac(ica)" .
<http://caligraph.org/resource/Seneca_Dam>	<http://caligraph.org/ontology/river>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Monroe%20Creek_(16762152)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Big_Cove_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Olmsted_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Hogue_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Popes_Creek_(Maryland)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Donaldson_Run>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Neabsco_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Maddox_Branch>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/North_River_(Cacapon_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Fork South Branch Potomac River" .
<http://caligraph.org/resource/Holmes_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Index_of_Washington,_D.C.%E2%80%93related_articles> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/Carroll_Creek_(Maryland)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Okonoko%20Island_(21011165)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Arlington_Memorial_Bridge>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Nanjemoy_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Swanson%20Creek_(17045372)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Catoctin_Creek_(Maryland)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/River_of_Maryland> .
<http://caligraph.org/resource/Foundry_Branch>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Capon_Lake_Whipple_Truss_Bridge>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Nanjemoy_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Thomas_Walker_Gilmer>	<http://caligraph.org/ontology/deathPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Hack%20Creek_(19193303)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mattox_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Four_Mile_Run>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Chesapeake_Bay> .
<http://caligraph.org/resource/Bullock%20Island_(22875407)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Back%20Creek%20Island_(24041553)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Donaldson_Run>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Ballenger_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Rivers_of_West_Virginia> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Rivers_of_West_Virginia_by_county> .
<http://caligraph.org/resource/Rocky%20Run_(16784229)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Maddox_Branch>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Rivers_of_Washington,_D.C.> .
<http://caligraph.org/resource/Green_Spring_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/River_of_Pennsylvania> .
<http://caligraph.org/resource/Three_Sisters_(District_of_Columbia)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Elm%20Island_(20922572)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cherry_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"North Branch of the Potomac River" .
<http://caligraph.org/resource/Limekiln%20Branch_(18820818)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Borders_of_Maryland> .
<http://caligraph.org/resource/West_Potomac_Park>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Four_Mile_Run>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_River_(North_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/James_Finley_(engineer)> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Jefferson_County,_West_Virginia> .
<http://caligraph.org/resource/Rock_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Magruder%20Run_(19898779)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Jackson_River_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Lock%20Island_(22663004)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/St._Mary\u0027s_County,_Maryland> .
<http://caligraph.org/resource/Guinn_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Laurel_Run_(Georges_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/North_River_(South_Fork_Shenandoah_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Piscataway_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Clagett%20Island_(19056170)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Gulf_Branch>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potowmack (now spelled Potomac) River" .
<http://caligraph.org/resource/Horsepen_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dogue_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Crane_Island_(Washington)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Fossil_site> .
<http://caligraph.org/resource/Port_Tobacco_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/East_Potomac_Park>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Gulf_Branch>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dillons_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Sligo_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Echo%20Island_(16843873)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Wills_Creek_(North_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Passage_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Pimmit_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Occoquan_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Valley_View_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/White_Run_(Rock_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Sharpshin_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Heater\u0027s_Island_Wildlife_Management_Area>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Pohick_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Longs_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Plummers_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/St._Mary\u0027s_County,_Maryland> .
<http://caligraph.org/resource/Shepherds%20Island_(21751770)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dogue_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Chopawamsic_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Seneca_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Brush_Creek_(Wills_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Falls_Branch_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/New_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cedar_Creek_(North_Fork_Shenandoah_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Laurel_Fork_(North_Fork_South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Middle_Creek_(Toms_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_fossil_sites> .
<http://caligraph.org/resource/Seneca_Creek_(North_Fork_South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Buffalo_Creek_(South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Border_of_Maryland> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Outline_of_the_United_States> .
<http://caligraph.org/resource/Nichols%20Run_(19093999)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mason\u0027s_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Chesapeake_Bay>	<http://caligraph.org/ontology/inflow>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Vaso%20Island_(18994124)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Transportation_in_Virginia> .
<http://caligraph.org/resource/Birch%20Creek_(16754696)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Big_Run_(South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/1st_Company_Massachusetts_Sharpshooters> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Fly_fishing_water_in_North_America> .
<http://caligraph.org/resource/Gladys%20Island_(18604354)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Torpedo%20Island_(16842506)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Capon_Springs_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Sycamore%20Island_(16924465)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Isaacs_Creek_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Branch" .
<http://caligraph.org/resource/Langley%20Island_(18630289)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac Valley" .
<http://caligraph.org/resource/Donaldson_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Warm_Spring_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Rock_Run_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_longest_rivers_in_the_United_States_by_state> .
<http://caligraph.org/resource/Difficult_Run>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Accotink_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"river Pattowmack" .
<http://caligraph.org/resource/Town_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Passapatanzy_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mason%20Island_(17442445)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Pomonkey_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Difficult_Run>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Blakistone_Island_Light>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Minnehaha%20Island_(23834374)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Catoctin_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Tributary_of_the_Chesapeake_Bay> .
<http://caligraph.org/resource/Roaches%20Run_(22728747)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Abrams_Creek_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Powells_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Branch South Fork Potomac River" .
<http://caligraph.org/resource/Bearwallow_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/mouthElevation>	"0.0" .
<http://caligraph.org/resource/Toms_Creek_(Monocacy_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"dam" .
<http://caligraph.org/resource/Pond%20Run_(21893942)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Back_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Stony_River_(West_Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/St._Marys_River_(Maryland)>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Powells_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Wills_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Meadow_Island,_New_York>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mill%20Branch_(16783269)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/St._Marys_River_(Maryland)>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Spangler_Spring_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Duck%20Island_(16785373)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac River watershed" .
<http://caligraph.org/resource/Tenmile_Creek_(Maryland)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Licking_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Catoctin_Creek_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Yeocomico_River>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Point_Lookout_Light>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Garners%20Creek_(19489634)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Double_Pipe_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Perry%20Island_(20483104)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Chatauqua%20Island_(23234427)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Wades%20Island_(18559624)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Grassy_Lick_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Sir_Johns_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Bonum%20Creek_(20537887)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cabin_John_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Place_in_the_United_States> .
<http://caligraph.org/resource/Yeocomico_River>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mattox_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Marsh_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Whitewater_river> .
<http://caligraph.org/resource/Windy_Run>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Windy_Run>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Selden_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac River#Upper Potomac River" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac_River#History" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_Chesapeake_Bay_rivers> .
<http://caligraph.org/resource/Little_Hunting_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Antietam_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Limestone,_West_Virginia>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Tuscarora_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2000/01/rdf-schema#label>	"Potomac River" .
<http://caligraph.org/resource/Shenandoah_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Spout_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Chinese_mystery_snail> .
<http://caligraph.org/resource/Edwards_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Shoemaker_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Popes_Creek_(Maryland)>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Mattox_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Patterson_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_Washington,_D.C.> .
<http://caligraph.org/resource/Paton%20Island_(18705526)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"North Branch Potomac River" .
<http://caligraph.org/resource/Mathias_Point_Light>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Hog_Island_(Lincoln_County,_Maine)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Tenfoot%20Island_(18880258)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Buck_Run_(West_Branch_Conococheague_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Broad_Creek_(Susquehanna_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Rocky%20Islands_(16982075)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Popes_Creek_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Oxon_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Patawomeck (Tidal Potomac) River" .
<http://caligraph.org/resource/Tiber_Island_(District_of_Columbia)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Tuscarora_Creek_(Opequon_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Oxon_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Geography_of_North_America> .
<http://caligraph.org/resource/Lunice_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Branch Valley" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/American_Heritage_Rivers> .
<http://caligraph.org/resource/Nolands%20Island_(17284600)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_fly_fishing_waters_in_North_America> .
<http://caligraph.org/resource/Bealls%20Island_(18084767)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Goose_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"North Branch<br />Potomac River" .
<http://caligraph.org/resource/Popes_Creek_(Maryland)>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_Palisades_Site>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_River_(Goose_Creek_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cameron_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Muddy_Branch>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Occoquan_River>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Conococheague_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Occoquan_River>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Powells_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Henson_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Upper%20Machodoc%20Creek_(19244943)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Branch of the Potomac" .
<http://caligraph.org/resource/Turkey%20Island_(16922594)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Border_of_West_Virginia> .
<http://caligraph.org/resource/Aquia_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Chopawamsic_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dutchman%20Creek_(17128611)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac River's" .
<http://caligraph.org/resource/Chopawamsic_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Downey%20Branch_(17447124)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Pinehurst_Branch>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Stony_Creek_(North_Fork_Shenandoah_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Pomonkey_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/River_City_Stakes> .
<http://caligraph.org/resource/Minnehaha%20Branch_(17687939)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Aquia_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Hermit%20Island_(16790338)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Tonoloway_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Cacapon_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Difficult_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Hull_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_rivers_of_Pennsylvania> .
<http://caligraph.org/resource/Conn%20Island_(18251979)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"North Fork South Branch Potomac River" .
<http://caligraph.org/resource/Potomac_River>	<http://caligraph.org/ontology/length>	"651784.32" .
<http://caligraph.org/resource/Hunting_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Steer%20Run_(18845710)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Fifteenmile_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Broad_Run_(Maryland)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Sugarland_Run,_Virginia>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dead%20Run_(23173863)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Dry_River_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Bull_Run_(Occoquan_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/German_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Carroll%20Branch_(17086407)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac" .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"North Fork of South Branch of the Potomac River" .
<http://caligraph.org/resource/Pomonkey_Creek>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/River_of_the_Americas> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Morgan_County,_West_Virginia> .
<http://caligraph.org/resource/Key_Bridge_(Washington,_D.C.)>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Plum_Run_(White_Run_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/St._Marys_River_(Maryland)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Popes_Creek_(Virginia)>	<http://caligraph.org/ontology/mouthMountain>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Popes_Creek_(Virginia)>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Borders_of_Virginia> .
<http://caligraph.org/resource/Hunting_Creek>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Fifteenmile_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Christians_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Long_Bridge_(Potomac_River)>	<http://caligraph.org/ontology/crosses>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Ptowmack" .
<http://caligraph.org/resource/Big_Run_(North_Fork_South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Fork South Branch Potomac" .
<http://caligraph.org/resource/Mill_Creek_(North_Fork_South_Branch_Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Wicomico_River_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Tidal Potomac River" .
<http://caligraph.org/resource/Quantico_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Potomac basin" .
<http://caligraph.org/resource/Little_Falls_Dam_(Potomac_River)>	<http://caligraph.org/ontology/river>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Harlan%20Run_(18021588)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Theodore_Roosevelt_Island>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/St._George_Island,_Maryland>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Swainson%20Island_(21905390)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/James_Creek>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Harrison_Island_(Maryland)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"river Potomac" .
<http://caligraph.org/resource/Willoughby_Run>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Stafford_County,_Virginia> .
<http://caligraph.org/resource/Sherwin%20Island_(19748507)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Brushy_Fork_Lake>	<http://caligraph.org/ontology/inflow>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Sideling_Hill_Creek_(Potomac_River_tributary)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Smith_Creek_(Virginia)>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Potomac_River>	<http://www.w3.org/2004/02/skos/core#altLabel>	"South Branch<br />Potomac River" .
<http://caligraph.org/resource/Coan_River>	<http://caligraph.org/ontology/mouthPlace>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Little_Monocacy_River>	<http://caligraph.org/ontology/riverMouth>	<http://caligraph.org/resource/Potomac_River> .
<http://caligraph.org/resource/Goose_Island_(District_of_Columbia)>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Potomac_River> .