https://w3id.org/framester/conceptnet5/data/en/venomous_snake <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/snake> <https://w3id.org/framester/conceptnet5/data/en/venomous_animal> risorse dalla linked data cloud