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.

For hours I have tried to figure out this machine. It finally got the best of me. It is being returned. I can't figure out how to bind 8 1/2 x 11 size paper. It leaves a half punched hole either at the top or the bottom of the paper and the combs they give you are too long for this size paper as well.
negative

I really like Pippa's writing. This sci-fi slash fantasy combination has me hooked. Cannot wait til the third book is released. Plot keeps you guessing about what challenge will come next, and how will the character grow with it. Please keep this series coming...quickly preferred. ;-)
positive

This scrapping board can massage my back, legs and neck very well. It can relieve my fatigue after a day's work. It also improves the body's flexibility and stimulates the immune system. I am very satisfied with its effect on improving physical fitness.

positive