https://w3id.org/framester/conceptnet5/data/en/lithology.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/rock> <https://w3id.org/framester/conceptnet5/data/en/classification> <https://w3id.org/framester/conceptnet5/data/en/description> <https://w3id.org/framester/conceptnet5/data/en/rock_sequence> risorse dalla linked data cloud