https://w3id.org/framester/conceptnet5/data/en/skate_on_thin_ice <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/skate.n> <https://w3id.org/framester/conceptnet5/data/en/skate.v> risorse dalla linked data cloud