The bear is red. The bear is round. The bear needs the cat. The bear sees the tiger. The cat sees the tiger. The squirrel is nice. The squirrel is red. The tiger needs the bear. The tiger needs the squirrel. The tiger sees the bear. If something needs the cat then it sees the bear. If something sees the tiger and the tiger sees the cat then it needs the bear.
The bear does not need the tiger.