The bear is green. The bear needs the cow. The bear needs the squirrel. The bear sees the tiger. The cow is nice. The cow does not need the bear. The squirrel is green. The squirrel needs the cow. The tiger needs the squirrel. The tiger sees the bear. If something is not nice then it eats the cow. If something sees the cow and it does not need the tiger then it sees the tiger.
The bear does not see the tiger.