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.

Ex Input:
Well I received this product Monday, it's friday and won't turn on anymore. It was wonderful for 4 days, but like I didn't spend 30-40 bucks on this for it to stop working. I'd like my money back, considering my old heating pad lasted 3 years.

Ex Output:
negative

Ex Input:
My son wear a 10 in men so I always go a half size Bigger with all his shoes / sneakers to give him room for growth. He wore these shoes for his 8th grade dance. He didn't complain about the fit at all. And they were on their his feet all night .

Ex Output:
positive

Ex Input:
As soon as I opened the sealed package, the items felt damp to the touch and I was hit with a moldy smell. For an item that is supposed to clean the air, I felt it needed to be cleaned itself. I have no idea how it was packaged or why it would be damp but clearly it was not dry before packaging. Very disappointed for something with such great reviews.

Ex Output:
negative