You will be given a definition of a task first, then some input of the task.
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.

I received this ipad and it did not work. Black screen showing only that the battery was dead and it would not charge. . I tried calling the seller but there was no answer. I called again and left a message but they never returned my call. I contacted Amazon directly which they quickly responded and gave me a full refund.
Output:
negative