The cat chases the mouse. The cat does not eat the mouse. The cat is blue. The cat is nice. The cat does not need the cow. The cat needs the mouse. The cow chases the mouse. The cow is big. The cow is nice. The cow needs the cat. The mouse is young. The mouse needs the cow. If the mouse chases the cow then the mouse eats the cat. If someone chases the mouse and they need the cow then the cow does not eat the cat.
The cat does not chase the mouse.