The bear chases the dog. The bear is big. The bear needs the dog. The cat chases the bear. The cat chases the dog. The cat visits the dog. The dog is blue. The dog is rough. The dog needs the bear. The dog visits the cat. If something needs the bear and the bear needs the dog then the bear needs the cat. If the cat is green then the cat chases the dog. If something is big and rough then it visits the dog.
The dog visits the dog.