https://w3id.org/framester/conceptnet5/data/en/west_potomac_park <https://w3id.org/framester/conceptnet5/schema/AtLocation> <https://w3id.org/framester/conceptnet5/data/en/potomac_river> <https://w3id.org/framester/conceptnet5/data/en/northwest_washington_d_c> <https://w3id.org/framester/conceptnet5/data/en/washington_channel> <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/architectural_structure> <https://w3id.org/framester/conceptnet5/data/en/build> <https://w3id.org/framester/conceptnet5/data/en/place> risorse dalla linked data cloud