https://w3id.org/framester/conceptnet5/data/en/pedal_boat <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/user_power_device> <https://w3id.org/framester/conceptnet5/data/en/small_watercraft> risorse dalla linked data cloud