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: Works great! I have two other similar products and this is by far the most powerful. Especially for the price! Shipping was quick and easy without issue.
Example Output: positive

Example Input: Love this pigment. Bright rich colors that are individually labeled for easy use and easy ordering in the future and the little scoop that comes with this order is way to cute. Came in a box that was packed full of bags of pigment. Exactly as described.
Example Output: positive

Example Input: I couldn't read it beyond a few pages (if the point of the book was to test my patience, then I clearly failed). It needs a thorough editing to fix grammar and style.
Example Output:
negative