The cat eats the cow. The cow is round. The dog visits the cow. If something needs the cow and it is rough then the cow needs the dog. If something needs the cow then the cow visits the dog. If the cow needs the dog and the dog eats the cat then the cat visits the cow. If something visits the cow and it is young then the cow needs the dog. If something is nice and round then it is young. If the dog needs the cow then the cow is blue.
The dog needs the cow.