https://w3id.org/framester/conceptnet5/data/en/billiard_ball <https://w3id.org/framester/conceptnet5/schema/HasA> <https://w3id.org/framester/conceptnet5/data/en/different_number> <https://w3id.org/framester/conceptnet5/schema/HasProperty> <https://w3id.org/framester/conceptnet5/data/en/hard> <https://w3id.org/framester/conceptnet5/data/en/very_hard> <https://w3id.org/framester/conceptnet5/data/en/use_to_illustrate_newtonian_physic> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/pool_ball> <https://w3id.org/framester/conceptnet5/schema/UsedFor> <https://w3id.org/framester/conceptnet5/data/en/play_billiards> <https://w3id.org/framester/conceptnet5/schema/MadeOf> <https://w3id.org/framester/conceptnet5/data/en/plastic> risorse dalla linked data cloud