In this task, you are given books product reviews in English language. The goal is to classify the review as "POS" if the overall sentiment of the review is positive or as "NEG" if the overall sentiment of the review is negative.

Ex Input:
The BEST book on chronic pain I've found. . I've lived with chronic pain for 2 1/2 years as a result of a car accident  which left me with Reflex Sympathetic Dystrophy.  This book addresses  issues that apply to all kinds of chronic pain.  It is practical and easy  to understand.  I've bought many, many books on chronic pain, and this is  by far the best.  I believe this approach to living with chronic pain is  realistic, positive and allows the sufferer to make the most of his/her  life.  The book relates very well to the psychological effects of living  with chronic pain.  This physical and psychological program allows the  sufferer to take back control over his pain and his life.  If you or a  loved one suffer from chronic pain, this book is a must

Ex Output:
POS


Ex Input:
boring, more of the same . This is simply a rehash of Dr. Burns previous writings. If you have read Feeling Good, it is a waste of money to purchase this book. He covers the same material but change the names the scenerios. He is a one trick pony and clearly has done no more recent research , since the prior books

Ex Output:
NEG


Ex Input:
Short and Sweet . Judging by the long reviews before me, it should be obvious that there is much to say about Calvin's theology.  This book doesn't say too much.  For those familiar with his theology, DON'T buy this book.  It will be a waste of your money.  For those who would like to know more about Calvin's theology, without getting caught in mid 16th century language or too deep into theology, buy this.  If you want a good in depth coverage of Calvin's theology, buy the FULL version and enjoy

Ex Output:

NEG