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: Reading this book felt like a puzzle set out before me. I had all the pieces early on but didnt know how they fit together. The author takes your hand and leads you down an amazing, glorious path, explaining the need for each piece. The end result? A master piece.
Example Output: positive

Example Input: Bought two of these mattresses for a bunk bed and they are terrible. You can see where the springs are and there is little to nothing separating them from the cover. Description lists 2" of total foam and there can't be more than a half inch. You get what you pay for but the description could atleast be correct.
Example Output: negative

Example Input: Got one of these for my nerdy boyfriend. He is obsessed with it! It has a nice shine and weight to it. May get some more in other variations in the future.
Example Output:
positive