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: Unsuitable for undergraduates . The original Mechanical Engineering Design book written by Joseph Shigley, and later, with Larry Mitchell, was an excellent undergraduate text; it was readable at the introductory level, and it contained enough information and methodology for use as a good reference book after graduation. Unfortunately, this revised text, which was rewritten by Charles Mischke, is thoroughly unreadable, obfuscating, and is totally unsuitable as a text for undergraduate mechanical engineering students. The book is full of nuances, subtleties and informative data that do make it useful as a reference book on the shelf of an experienced design engineer, but not as a text for students learning the subject. For those who plan to teach a course for mechanical engineering majors on this topic, I recommend other texts such a Jack Collins' Mechanical Design of Machine Elements and Machines, Wiley, 2003
Example Output: NEG

Example Input: This cannot be for real. . I am a black woman who happens to be dating a white man. However, when I first came across this book a few years ago, I was offended and frankly, shocked that something this blatantly racist and disrespectful could have been printed under the guise of a self-help book. Whoever the author may be, s/he must realise that the way to make a rational argument to the intended reading audience of black females is NOT to insult black men, who represent her brothers, her father or her friends. Another review on this board took the words right out of my mouth, when it stated that historically, it has been white-not black men-who have perpetuated the myth of the black [...], and who have been heavily invested in creating a sexually degraded image of the black woman in order to justify his sexual exploitation of her. Half of me believes [or wants to believe] that this book is actually a satire. I hope one day to have my hopes confirmed!
Example Output: NEG

Example Input: An American Essential . For a buck you can certainly toss this in with whatever else you're ordering this trip. RWE is one of the great articulators of the American mind. For better or worse, here's a distilled vision of what we think. RWE's positive and powerful view of human thought can be uplifting, though some may occasionally experience a desire to snort "Oh, puh-lease!" A great source of pithy quotes and sharp insights, RWE also provides considerable depth if you wade all the way into his works. Everyone should have some collection of Emerson on the shelf, and this collection hits all the high points (though it is not, it should be said, a good choice for those suffering from chronic eyestrain)
Example Output:
POS