https://w3id.org/framester/conceptnet5/data/en/action_on_object <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/action> <https://w3id.org/framester/conceptnet5/data/en/physical_event> <https://w3id.org/framester/conceptnet5/data/en/action_topic> risorse dalla linked data cloud