https://w3id.org/framester/conceptnet5/data/en/penny_drop <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/drop> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/understand> <https://w3id.org/framester/conceptnet5/data/en/comprehend> risorse dalla linked data cloud