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: The first couple of bags were great. Really fresh, smooth, great taste. I thought I'd found the perfect coffee bean!! The next 5 bags .. stale. I canceled my order and went back to buying whole bean coffee from the supermarket. You pay a little bit more, but I've found that most of the time, the supermarket coffee is fresher. I prefer the taste of Weaver's but too many stale bags.
Example Output: Negative

Example Input: Reveived my item fast! It was exactly what I ordered in excellent shape with safe shipping - i will came back and shop here again.  Thanks
Example Output: Positive

Example Input: This product sells for $4.69 in New York City, the Bronx  and in South Jersey (in Shoprite) for $4.69 a can.  Amazon is selling it for over five dollars a can, and you have to buy the case. Get it at the store. The formula is great just amazon has it over priced
Example Output:
Negative