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'm trying to get my eyebrows to fill in after years of over tweezing. This product is easy to use, using the brush applicator in the lid. Just once a day at bedtime, I paint it on my eyebrows. I have very sensitive skin, and this serum doesn't irritate my skin. I'm looking forward to this product giving me my eyebrows back.
Output:
positive