Group these animals into 2-legged and 4-legged categories:  kangaroo, dog, rhino, lion, giraffe, penguin, chimpanzee and cat.
Penguin, chimpanzee and kangaroo have 2 legs. Dog, cat, lion, rhino and giraffe have 4 legs.
<START_INST>Group these animals into 2-legged and 4-legged categories:  kangaroo, dog, rhino, lion, giraffe, penguin, chimpanzee and cat.<END_INST><START_CTX><END_CTX><START_A>Penguin, chimpanzee and kangaroo have 2 legs. Dog, cat, lion, rhino and giraffe have 4 legs.<END_A>