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 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.
Negative

This was the best purchase that I could have made for my daughter. It was priced beautifully and my daughter can study without worrying about the price for her college books. Thanks so much!!
Positive

I love Italian roast realized - and French roast- This is very expensive. I ju purchasest that I'm on Amazon - and I don't purchaise things from Amazon.
Negative