https://w3id.org/framester/conceptnet5/data/en/richard_roll <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/financial_economics> <https://w3id.org/framester/conceptnet5/schema/dbpedia.influencedBy> <https://w3id.org/framester/conceptnet5/data/en/merton_miller> risorse dalla linked data cloud