Definition: 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.
Input: I honestly don't know how this product could have garnered so many five-star reviews. I bought it for my senior dogs (14 years old) when their usual joint treats (Pet Naturals of Vermont soft chews) were out of stock, since one of my dogs is very finicky about what glucosamine supplements he'll take, and I had tried everything else available without success. I gave both of them the recommended dosage, based on their weights (15 and 24 lbs), and was delighted to see that they happily accepted the treats. Within 12 hours, though, my Yorkie had raging diarrhea and my Eskie-poo had vomited forcefully, which was very unusual for both of them. Not realizing it was this product, I tried it again a couple of days after nursing them back to health, with the exact same effect. Internet searches confirmed that other users have similarly reported nasty GI side effects with this product.
Output:
Negative