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: These definitely do not feel safe. I was baking something at 400F and took the tray out and looked at the mitt and it was completely black where I picked it up..... NOT WORTH BUYING.
Example Output: negative

Example Input: Buyer beware!!! What I received is NOT Charmin Ultra Strong Toilet Paper 9 Mega Roll!!!! It is a cheap knock off!! Even packaging was bizarre. DO NOT ORDER ANYTHING FROM "BAY AREA MARKETPLACE!!!" Plus, they have a "no returns" policy. Clearly a scam. Very disappointed in Amazon for allowing counterfeit products to be sold on their website!!!
Example Output:
negative