Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Ex Input:
I am using this textbook in a class and it is a whopper. Wonderful pictures, easy to read, clear colors and understandable. I've been working in prisons for 5 years and this book makes a lot of sense. You ought to read their sections on women in prison and on probation. I loved the parts on geriatric prisoners (old cons) and the death penalty. And it is easy to read. More!

Ex Output:
Positive


Ex Input:
I was extremely disappointed with the fabric and color when it came. It is obvious that it is of poor quality but I guess you get what you paid for 10 bucks.The zipper of the plastic cover of one set was broken.I bought 2 queen sheets and I wanted to return both purchases if only I did not have to pay for shipping.Do not buy this!!!! You will regret it.

Ex Output:
Negative


Ex Input:
Having read the previous reviewers' reports warning about how easily this product could develop runs, I was super careful and tried very much to make my expensive pair last. The first time I had this pantyhose on, I got a bad run that ruined this very expensive pair of hosiery! Unbelievable!

Ex Output:

Negative