https://w3id.org/framester/conceptnet5/data/en/sickle_cell_anemia <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/anemia.n> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/anemia> risorse dalla linked data cloud