In this task, 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: WOW...A must for any Chess player. Quality in every way. Buy it for yourself, buy it for a chess player in your family. A chess tournament in a portable case. Look, at the others, read the reviews, then buy the real deal...!!!
Example Output: positive

Example Input: Color did not last long whatsoever. Followed the instructions and had the dye in for hours to make sure but yet; when washed out only little bits of color stayed. Not really happy
Example Output: negative

Example Input: I was surprised by how small it is; but, very impressed how well it works with my phone. Some reviews say they could not use the device with the phone case on. They must use Otter Box - I have my phone in a silicone case and it fits just super. I am very happy with this device
Example Output:
positive