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: very disappointing product! In less than a year its doesn't work properly! After 40min of use it turns off, no matter if charged or no! Wouldn't buy again
Example Output: negative

Example Input: Product was exactly as described, worked like a charm. Good quality material does what I want to do, and looks great. I would like to see a few more aluminum crimps in the bag to do multiple loops on the cable in the future. Overall great product.
Example Output: positive

Example Input: I love my new girdle. it was a little tight around the leg area but is getting better with each use. I wear a 12 size and my M-L fits perfectly. I have already sent the link to some friends
Example Output:
positive