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 use this filter in my L.G. French door refrigerator. The price is excellent and I replace every six months. The regular water filter is 45 to 55 dollars just for one. With Waterdrop, you get two filters for more then half the price. Great deal.
Output:
positive