https://w3id.org/framester/conceptnet5/data/en/material_implication <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/implication.n> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/logical_connective.n> risorse dalla linked data cloud