Detailed Instructions: 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.
Q: This is the simplest and cleanest screen protector I've ever used, and I make sure I have one on every screen because my nails are long.You can't even tell what I have, and I'm not a professional at all.
A:
positive