https://w3id.org/framester/conceptnet5/data/en/electrical_household_appliance <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/household_appliance> <https://w3id.org/framester/conceptnet5/data/en/electrical_device> <https://w3id.org/framester/conceptnet5/data/en/product_with_warranty> risorse dalla linked data cloud