https://w3id.org/framester/conceptnet5/data/en/open_pit_mine <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/mine.n> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/stone_pit> risorse dalla linked data cloud