https://w3id.org/framester/conceptnet5/data/en/20_20 <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/expression_suggest_perfect_vision> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/twenty_twenty> risorse dalla linked data cloud