Definition: 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.
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
Output:
POS