https://w3id.org/framester/conceptnet5/data/en/penknife <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/knife.n> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/useful_tool> <https://w3id.org/framester/conceptnet5/data/en/multi_purpose_tool> <https://w3id.org/framester/conceptnet5/schema/UsedFor> <https://w3id.org/framester/conceptnet5/data/en/cut_thing> risorse dalla linked data cloud