the rat lung the gravitational releasing of space
kangaroo_rat is pocket_rat. rat is earthly_branch. ratite is flightless_bird. water_rat is rodent. autem_quaver is autem_cackler. kangaroo_rat is mammal. kangaroo_rat has two_legs_for_jumping bird_lung is lung. black_rat is rat. gravitational_collapse is implosion.