Given the task definition and input, reply with output. 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.

We have had trouble in finding dog food for one of our small dogs who obviously has a very sensitive stomach. We have tried several kinds of dog food for her and Newman's Own Organic seems to be agreeing with her. So we will continue purchasing this product through Amazon as long as it does.
Positive