You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

This one baffled me. My Blue Heeler loves "figure it out" kind of toys, but she was not interested in this at all, not even for 2 minutes. I put her favorite treats it, spent days trying to intrigue her, but to no avail. Maybe it'll work for somebody else. Pay my shipping and I'll send you mine for free!
Negative