the respiratory health hand space to the circulatory touching
potty_chair is fluid_reservoir. circulatory_conduit is spatial_thing. coping_saw is handsaw. ball_and_socket_joint is joint_physical. holding_hands is deliberately_touching. breathing_room is room. body_of_hand is solid_object. hands is instrumental_organs. touching is touching. vertebrate_circulatory_system is body_part.