The cat eats the tiger. The dog needs the tiger. The tiger needs the dog. If something chases the dog and it does not eat the dog then it does not eat the cat. If something chases the dog then it needs the cat. If something eats the tiger and the tiger does not eat the cat then the cat does not need the tiger. If something does not chase the dog then it is not cold. If something is not cold then it eats the tiger. If something does not chase the dog then the dog needs the cat.
The tiger does not need the cat.