https://w3id.org/framester/conceptnet5/data/en/optional <https://w3id.org/framester/conceptnet5/schema/Antonym> <https://w3id.org/framester/conceptnet5/data/en/require> <https://w3id.org/framester/conceptnet5/data/en/compulsory> <https://w3id.org/framester/conceptnet5/data/en/mandatory> <https://w3id.org/framester/conceptnet5/data/en/obligatory> <https://w3id.org/framester/conceptnet5/data/en/nonelective> <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/option.n> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/elective> <https://w3id.org/framester/conceptnet5/data/en/voluntary> <https://w3id.org/framester/conceptnet5/data/en/discretionary> <https://w3id.org/framester/conceptnet5/data/en/facultative> risorse dalla linked data cloud