Given the task definition and input, reply with output. 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.

The black case attracts to must visible dust and does not look clean at all. The screen protector did not stick onto the edges so had to take if off and throw it away. Not all all satisfied with the purchase! :(
negative