The cat is kind. The cat is red. The cat needs the dog. The dog is blue. The dog is kind. The dog is rough. The dog needs the squirrel. The squirrel likes the cat. The squirrel likes the dog. The squirrel needs the dog. The squirrel visits the cat. The squirrel visits the dog. If something needs the cat and the cat likes the dog then the dog needs the squirrel. If something visits the squirrel then it needs the cat.
The squirrel does not need the cat.