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.
Input: WOW!!! I was skeptical about buying this, but HOLY COW what a difference this has made in my life! This unit sits in my bedroom and runs at high speed (because I like the sound of a fan at night), and the first morning after this had been running all night I woke up with NO coughing, chest congestion or anything. Plus I have been feeling great every morning! SO glad I purchased this and I will definitely buy another one soon!!
Output:
positive