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.

Ex Input:
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.

Ex Output:
Negative


Ex Input:
I bought this coffee because I have acid reflux/GERD.  It says it is coffee and it is low acid.  I made three pots in a very good coffeemaker and nothing I did improved the flat nothing taste of this coffee.  It also was no better for stomach irritation that other coffees I have tried.  I took a chance when I bought this coffee because it is non-returnable.  I have spent less money for much better tasting coffee.  Amazon seldoms disappoints me with the quality of their products.  Healthwise Gourmet Coffee, is something I would have been better to do without.

Ex Output:
Negative


Ex Input:
I've purchased dozens of bags of this pancake mix (which is a great product, by the way).  This is the highest price I've seen.  Whole Foods carries this item and it's been on sale there for $9.99 (that's Canadian dollars, too, as I'm in Canada).  It's even cheaper on Baker's Box's own website, and they're the company selling this product through Amazon. For a two-pack they should be charging $20 or less.  What gives?  I thought Amazon was where you could find competitive prices.

Ex Output:

Positive