https://w3id.org/framester/conceptnet5/data/en/cathode_ray_tube <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/tube.n> <https://w3id.org/framester/conceptnet5/data/en/cathode_ray.n> <https://w3id.org/framester/conceptnet5/schema/HasProperty> <https://w3id.org/framester/conceptnet5/data/en/use_in_very_simple_machine> <https://w3id.org/framester/conceptnet5/schema/PartOf> <https://w3id.org/framester/conceptnet5/data/en/television> risorse dalla linked data cloud