a kangaroo is a kind of animal
kangaroo_mouse is mammal. stephens_kangaroo_rat is mammal. red_kangaroo is mammal. giant_kangaroo is kangaroo. desert_rat_kangaroo is mammal. kangaroos is powerful_animals. rat_kangaroo is kangaroo. kangaroo_rat is mammal. giant_kangaroo_rat is mammal. tree_kangaroo is mammal.