sentences: bone is a whole of the circulatory conduct
docs: spine is bone. ball_and_socket_joint is joint_physical. frontal_bone is bone. cervical_spine is bone_structure. joint is joint_physical. heart_chamber is circulatory_conduit. cystic_duct is anatomical_vessel. bone is bone_structure. lumbar_spine is bone_structure. blood_vessel is circulatory_conduit.