https://w3id.org/framester/conceptnet5/data/en/tear_duct <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/tear.n> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/lachrymal_duct> risorse dalla linked data cloud