https://w3id.org/framester/conceptnet5/data/en/oskar_morgenstern <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/person> <https://w3id.org/framester/conceptnet5/data/en/economist> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/scientist> <https://w3id.org/framester/conceptnet5/schema/dbpedia.influencedBy> <https://w3id.org/framester/conceptnet5/data/en/othmar_spann> risorse dalla linked data cloud