https://w3id.org/framester/conceptnet5/data/en/hail.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/thunderstorm> <https://w3id.org/framester/conceptnet5/data/en/precipitation> <https://w3id.org/framester/conceptnet5/data/en/ice> risorse dalla linked data cloud