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 had problem with the 2 screen protectors, any of them paste well on the screen. Very disappointing because I also bought the complete screen protection and I hope not happening the same thing...
Example Output: negative

Example Input: It was very easy to put on the wall as it came with the screws and dry wall anchors, and works well for my ukulele. The materials do feel a bit cheap, but it holds up well.
Example Output: positive

Example Input: This product doesn't fit my HP Officejet 3830 printer, even though the advertisement says it can. If you have a printer like mine, please don't buy it and save yourselves all the trouble.
Example Output:
negative