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:
Very fanciful, not data-driven . This vision of the future reminded me of common errors on physics tests where the student leaves out a variable or two and makes a wildly incorrect prediction of an object's future behavior. People have many connections to a place, which do not depend merely on their own security or on currency fluctuations. These emotional and cultural connections will keep people from being entirely atomized and "at-will" citizens for a long time to come. In reading the book, by the way, the style will annoy some rewaders in that it is not written in the modern, American style where predictions would be tied back to and grounded in data and trends. It's much more in an old fashioned English amateur gentleman scholar style where nothing is substantiated by anything and it's all sort of breezy. Some may like that.

Ex Output:
NEG

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:
NOT CONVINCING . THE FIRST 60 OR SO PAGES ARE JUST AWFUL. JOHN KEEGAN ARGUES THAT WAR IS NOT THE CONTINUATION OF POLITICS RATHER THE RESULT OF CULTURAL DRIVES. THAT MAY WELL HAVE BEEN SO IN HISTORICAL TIMES, BUT IS HARDLY SO TODAY. HE UNFORTUNATELY TRIES TO EXPLAIN AGGRESSION AND VIOLENCE FROM A BIOCHEMICAL PERSPECTIVE AND IS NOT ONLY DATED, HE'S FLAT WRONG. THERE'S OTHER PROBLEMS WITH HIS KNOWLEDGE, I.E., CLAIMING THE U.S. ABANDONED THE DRAFT AFTER WW II AND DIDN'T USE IT AGAIN UNTIL THE 60'S. WRONG AGAIN! WHAT IS INTERESTING IS THAT KEEGAN'S VERY VIEWS ARE SO MUCH A CONTINUATION OF BRITISH POLITICAL THINKING. NOT A GREAT BOOK AT ALL

Ex Output:
NEG