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: With both a stomach problem and a love of coffee, I thought this would be a great solution. I was wrong. I just didn't care for the taste. I recommend trying some low acid coffee once somewhere you can get a small cup before purchasing a 10-pack of bags for home brew. :(
Example Output: Negative

Example Input: I tried these in Colorado and came home to find out they only sell them on the west coast. Amazon didn't sell the ones I wanted. I put it on a wish list as a gift for a loved one. Within a week of their birthday, Amazon e-mailed me that it was available. Great chips but, took longer to ship then expected. Just in the nick of time for the birthday. When you want something real bad, Amazon usually comes through.
Example Output: Positive

Example Input: <a href="http://www.amazon.com/gp/product/B000KOUM68">Pioneer Brand Gravy Mix, Country, 2.75-Ounce Packets (Pack of 24)</a>  I had this gravy  at the Breakfast Buffet in the motel in Branson, MO. Very Good!!! The waitress told me the name, so I looked it up on the Internet and found it at Amazon.  I give it the Excellent Rating
Example Output:
Positive