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:
No much change . Although this book has been written almost 50 years ago it still provides basic insight into our behavior in the modern world. 'Money, prestige and power are the main incentives today for the largest section of our population - that which is employed'. This probably holds still today whereas some of the major concerns of the fifties are not concerning people any more.  A book to read and think about

Ex Output:
POS


Ex Input:
Bring Open Inventor Like functionality to a Browser . I believe VRML 2.0 is the perfect extension for students who have studied OpenGL and OpenInventor. The &quot;VRML 2.0 Source Book&quot; brings into the light many concepts in Open Inventor which seem difficult to apply.   Interpolators, sensors, collision detection, ...etc.   I applied many of the examples, into OpenInventor file format, rendered the scene graph, and control the scene with an open inventor widget.   Likewise, I was able to recreate the same functionality using a browser.  Understand VRML 2.0 is the next level of computer graphics, and the &quot;VRML 2.0&quot; source book provides the mentorship necessary to get there

Ex Output:

POS