The cat chases the dog. The cat eats the dog. The cat is big. The cat is blue. The cat is rough. The cat is round. The cat sees the dog. The dog chases the cat. The dog eats the cat. The dog is big. The dog is blue. The dog is not rough. The dog is round. The dog is young. The dog sees the cat. If something eats the cat and it sees the dog then the cat chases the dog.
The cat does not chase the cat.