The bear chases the lion. The bear is young. The cow needs the tiger. The lion needs the bear. The tiger needs the bear. The tiger needs the cow. The tiger needs the lion. If something needs the bear and the bear needs the tiger then it needs the lion. If something is young then it needs the tiger. If something chases the lion then it needs the bear. If something is green and it chases the lion then the lion is green. If the lion is cold then the lion chases the cow. If something is young and it needs the lion then the lion is cold. If something is round then it needs the tiger. If something chases the cow then it needs the tiger. If something is red and it sees the bear then it chases the bear.
The lion does not chase the cow.