https://w3id.org/framester/conceptnet5/data/en/math_book <https://w3id.org/framester/conceptnet5/schema/HasProperty> <https://w3id.org/framester/conceptnet5/data/en/bore> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/book> <https://w3id.org/framester/conceptnet5/schema/ReceivesAction> <https://w3id.org/framester/conceptnet5/data/en/find_in_school> <https://w3id.org/framester/conceptnet5/schema/UsedFor> <https://w3id.org/framester/conceptnet5/data/en/teach_math> <https://w3id.org/framester/conceptnet5/data/en/learn_math> <https://w3id.org/framester/conceptnet5/schema/MadeOf> <https://w3id.org/framester/conceptnet5/data/en/problem> risorse dalla linked data cloud