https://w3id.org/framester/conceptnet5/data/en/justus_von_liebig <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/person> <https://w3id.org/framester/conceptnet5/data/en/scientist> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/scientist> <https://w3id.org/framester/conceptnet5/schema/dbpedia.field> <https://w3id.org/framester/conceptnet5/data/en/chemistry> <https://w3id.org/framester/conceptnet5/schema/dbpedia.knownFor> <https://w3id.org/framester/conceptnet5/data/en/nitrogen> <https://w3id.org/framester/conceptnet5/data/en/liebig%27s_law_of_minimum> <https://w3id.org/framester/conceptnet5/data/en/condenser.n.laboratory> risorse dalla linked data cloud