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.

The brushes have good quality. They are soft, strong and easy to clean. It is good to have a lot of different brushes. As a beginner, I'm very happy with my purchase (I know they are all useful, I just need to learn how to use them all).
positive

I was taking this supplement to help me sleep. They were effective once I started taking two capsules just after supper. However, I did not sleep through the night. I am still trying different supplements
positive

This litter clumps well but gets a HORRIBLE scent to it when it has been used a few time. It's this gross, room filling heavy scent. I will never buy again.
negative