https://w3id.org/framester/conceptnet5/data/en/john_burr_williams <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/dbpedia.field> <https://w3id.org/framester/conceptnet5/data/en/finance> <https://w3id.org/framester/conceptnet5/schema/dbpedia.influenced> <https://w3id.org/framester/conceptnet5/data/en/harry_markowitz> <https://w3id.org/framester/conceptnet5/schema/dbpedia.influencedBy> <https://w3id.org/framester/conceptnet5/data/en/joseph_schumpeter> risorse dalla linked data cloud