https://w3id.org/framester/conceptnet5/data/en/pristine <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/cla/frm.pristin> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/clean> risorse dalla linked data cloud