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 Insider's Guide to Making Money in Real Estate: Smart Steps to Building Your Wealth Through Property . This Dolf de Roos book is no different from his other books, owning one is the same as owning all. Writes about same topics and ideas. Good author, trying to sell more books by using different titles. If you don't own any of his books, worth the $20 or so for the book. However, if you do...don't waste your money/positive cash flow Happy investin

Ex Output:
NEG

Ex Input:
A disappointing book about a tragic figure . After reading Robert Caro's masterful biographies (Volumes 1 and 2) of LBJ, I yearned to learn more about the background of Lady Bird--specifically what contributed to her not only staying married to LBJ but to singlemindedly propelling his career forward. Well, Russell's book certainly disappoints. It is very poorly and awkwardly written and edited. The only new information that I gleaned from this book was gossipy. If one wishes to learn substantive information about Lady Bird (and of course about LBJ), Caro's biographies are a far superior source

Ex Output:
NEG

Ex Input:
Fascinating! . As I am a scholar and an expert of Na-Dene groupings, I find this to be one of the most fascinating and remarkable volumes of THE HANDBOOKD OF NORTH AMERICAN INDIANS. The photos and linguistic data are absolutely fascinating and the authentic information -that so captivates every micro-molecule of my attention- is astonishingly elating! I have recently been able to determine -thanks to the many rare and authentic photos of this book- that many of the Northern 'Athapaskan' tribes are not totally 'mongoloid', as I had previoiusly surmised. I have discovered Indian (from 'India') and Turkish strains that are especially, concentrated in northeastern British Columbia and northwestern-Northwest Territory bands. These findings have shed much light on my Na-Dene origin theories, regarding the genetic makeup of the Na-Dene forbears. AWESOME!!

Ex Output:
POS