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.

As many others have noted, these treats made our dog extremely ill. We could not figure out what was wrong at first. Eventually we realized the treats might be making him sick. We stopped feeding him happy hips and he almost immediately got better. We threw them out. Stay very far away from this product.
Negative