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.

Example Input: This is the 1st K-cup coffee that I am getting grounds in my coffee. It is occuring about every 3 cups. I have not had this problem with other K cup manufactures. I will not reorder.
Example Output: Negative

Example 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.
Example Output: Negative

Example Input: My dog loved these and I think they probably helped with his gas and dare I say his breath too.
Example Output:
Positive