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.

Q: 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.

A: Negative
****
Q: I have older mats that have a ribbed surface and work great. These have small stiff points and actually hurt to lean on or kneel on. I can imagine that they hurt my cats paws ad that is why they tend to jump over them when exiting the littler box.

A: Negative
****
Q: Torani is a brand that sells their products in GLASS BOTTLES. The product description here on Amazon.com of this package did not specify that the bottles are PLASTIC. I would not have ordered this product had I known the bottles were plastic due to concerns about toxins in plastic. I pay extra for Amazon Prime and expect to be able to return an UNOPENED ITEM if it is not what I thought it would be. Not only will Amazon.com not allow me to return this item, they have deleted my prior feedback on the item. Hopefully they will not delete this feedback too as it is VERY RELEVANT for customers in deciding which items to purchase. If you don't want plastic bottles, do not order this set.

A:
Negative
****