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.

Input: Consider Input: I got two bottles for my newborn with no issue. On the third bottle, discovered a dropper that wasn't built into the cap. Not sure if it's a defective batch or what. (Which means you'd have to wash the dropper every time... not ideal at all.) I submitted for a return/replacement and the fourth bottle I got had the same issue. If this is just a new design, I'll definitely have to just switch brands. :(

Output: negative

Input: Consider 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.

Output: positive

Input: Consider Input: Already dropped and tossed several times....seems to work. We will not test the water proof feature intentionally. But everyday protection seems to work. I would recommend.
Output: positive