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: I am so excited to get this sweat vest! Fits great zips up easily. Fits and stays a lot better then a normal sweat band or waist trimmer. The smell of the material goes away as soon as you soak it in water with soap. But all and all great product.
Example Output: positive

Example Input: The Conditioner totally sucked, was not soft. Shampoo smelled good, I felt like it did not shampooed my hair, after rinsing felt like my hair was still oily, and not washed. I liked how it made my scalp feel refreshed! I won't be buying again!
Example Output: negative

Example Input: Don't care for it. It's think but it's also hard. I don't really see the point in putting something additional that is hard under my knees when they need protection from the hard floor.
Example Output:
negative