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.

Example Input: Even though it isn't big, it is So Easy to Operate. Having Herniated Discs in my Neck & Bulging Discs in my Lower Back, I can operate this Machine without putting to much pressure on my Back.
Example Output: positive

Example Input: Wound Tight is a sexy little novella that combine the Rough Riders world with the Blacktop Cowboys. It a fun read with lots of dirty talk. Callie Morgan is an independent, sassy young woman that knows what she wants and has the drive to go get it. Justin Donahue is a retired bull rider who has been working in various jobs trying to find what makes him happy. He has had a series of bad relationships with woman who just wanted him for his money. Callie and Justin have instant chemistry but can Justin get past all of his hang ups to try and have a relationship with her?
Example Output: positive

Example Input: This product works well. So well in fact that I thought it was going to suck the skin off of my face! I didn’t use steam to open my pores up and it still pulled junk out of my pores! I have always had blackheads pretty bad, and this tool helps tremendously!
Example Output:
positive