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.

Works great on my Toro mower. Unfortunately our previous filter began to fail and was very dirty. This replacement took minutes to change out and has worked great so far. I am very pleased that we now have a spare for when the filter goes out again. Shipping was quick and painless.
Output:
positive