https://w3id.org/framester/conceptnet5/data/en/drowse <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/cla/ang.dreosan.v> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/sleep> risorse dalla linked data cloud