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: Lens are super reflective making everything blurry. They do not reduce eye strain, on the contrary, they make it worse. I wouldn't waste your money on these.
Example Output: negative

Example Input: This is not an accurate thermometer. Consistently get 96 degree readings. It shorts out frequently. Does not save last temperature. Very disappointing.
Example Output: negative

Example Input: I love this machine. This is my third Brother all-in-one, and I've been very happy with all of them. I run a small business and this machine works for us with very few issues. Multiple employees share this machine and we're all glad to have it.
Example Output:
positive