The cat chases the lion. The cat needs the lion. The lion chases the cat. The lion eats the cat. The lion is big. The lion is blue. The lion is red. The lion is round. The lion is young. The lion needs the cat. If something is round and it eats the lion then it chases the lion. If something needs the cat and the cat is red then it needs the lion.
The cat does not chase the lion.