The bear chases the cow. The bear chases the rabbit. The bear sees the cow. The cow needs the rabbit. The cow sees the rabbit. The rabbit does not chase the bear. The rabbit does not chase the cow. The rabbit needs the cow. The rabbit sees the bear. The rabbit does not see the cow. If something does not chase the rabbit then the rabbit needs the bear. If something is green and it chases the cow then it is blue.
The bear is not blue.