Complex sentence: Rabbit is forced to make the best of a bad situation and tries various methods of disguising the bear's bottom, eventually using Pooh's bottom as a chair, with his legs as arm rests and the main bulk as a cushion.
Split into simpler sentences: Rabbit is forced to make the best of a bad situation and tries various methods of disguising the bear's bottom. Rabbit eventually uses Pooh as a chair, with his legs as arm rests and his big fat bottom as a cushion.