The cat chases the cow. The cat chases the rabbit. The cat eats the cow. The cat is blue. The cat is nice. The cat is not red. The cat needs the cow. The cow chases the cat. The cow eats the cat. The cow needs the rabbit. The rabbit does not eat the cat. The rabbit eats the cow. The rabbit is nice. The rabbit is red. The rabbit does not need the cat. If something needs the rabbit then the rabbit chases the cow. If something chases the cow and it eats the cow then it chases the cat.
The cat does not need the cat.