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.

Example 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
Example Output: POS

Example Input: Great book . Hiroshima by John Hersey is great book and I would recomend to anyone that they should read it.  Hiroshima is about the dropping of the first A-bomb on Hiroshima on August 6, 1945.  Tells true stories of several surivors from the moment of the bombing to their years after the bombing.  This book truly stands up to expectations of "Who is able to read, should read this book."  I think that everyone should read this book, not only for pleasure but for the true understanding of the Atomic bombing on Hiroshima through true stories told by people still alive today
Example Output: POS

Example Input: get to really know your cards . First, I must say that the previous reviewer shuns the author's decision to include other books as recommended reading, yet I find that when an author does this, they are helping the reader truly expand on the subject, and it shows that the author is secure enough to not feel that their way is the only way.  This book has been THE most helpful book for me to learn the Tarot, and about myself and friends/family.  There's a bit of numerology in it, and some lessons that are fun to do, at the same time, these teach more about the cards.  I would recommend this book to novices and skilled alike
Example Output:
POS