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: I bought these chips looking at its sale rank as one of the most sold chips on amazon.com. Unfortunately, I was highly disappointed. Way too much vinegar and they aren't like regular potato chips, some weird "pops".
Example Output: Negative

Example Input: Patak's makes the best curry around. I frequently use it in my Yellow Chicken Curry Dish which is a favorite with both my husband and seven year old.
Example Output: Positive

Example Input: I love this coffee, its dark but not bitter and smooth as silk. Its a big cup size 12oz so its great in the morning when I don't want to get up for coffee too much. If you have a Tassimo you should have this coffee blend on hand!
Example Output:
Positive