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.

It seems like nobody makes a good mechanical pencil anymore. As with other mechanical pencils I have tried recently, the lead on this pencil fails to automatically advance within a very short time in operation. This kind of defeats the purpose of having a mechanical pencil. Time to revert to the old yellow #2?
negative