https://w3id.org/framester/conceptnet5/data/en/sound_information_bear_thing <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/audible_sound> <https://w3id.org/framester/conceptnet5/data/en/information_bear_wave_propagation> risorse dalla linked data cloud