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.

I consider my Sheltie to be an intelligent dog, but the noise of the toy makes him back away. And I can't tell you how many times I've "demonstrated" how to get the kibble out. He just waits until I do it. He could care less about the thing, and he's very food motivated.
Negative

The first couple of bags were great. Really fresh, smooth, great taste. I thought I'd found the perfect coffee bean!! The next 5 bags .. stale. I canceled my order and went back to buying whole bean coffee from the supermarket. You pay a little bit more, but I've found that most of the time, the supermarket coffee is fresher. I prefer the taste of Weaver's but too many stale bags.
Negative

I wanted to like this wine because I really like Bethenny, but the wine just isn't good.  It really tastes and smells like vinegar.

Negative