https://w3id.org/framester/conceptnet5/data/en/physical_filter <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/product> <https://w3id.org/framester/conceptnet5/data/en/physical_filter> <https://w3id.org/framester/conceptnet5/data/en/non_power_device> risorse dalla linked data cloud