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:
Underworld . Underworld is an ambitious book.   By examining politics, economics, and popular culture in the United States during the last half of the twentieth century, author Don DeLillo engages in some interesting speculation about hidden meanings and connections that lie beneath our notice.  In the world that he depicts, people and events sometimes seem to be connected by some kind of field or ether through which unnamable forces operate.  In his opening scene, the lives of hundreds of thousands of people are joined by an historic baseball game, where a young man senses "the body heat of a great city ... small reveries and desperations, the unseen something that haunts the day."  In other passages of the book, these connections take the form of history or a system: "that thing you feel in an office ... sensing the linked grids lap around you."    The book focuses on Nick Shay, a man with some grit who escapes a meaningless life in the Bronx and becomes an executive in a waste disposal firm and a kind of savant.  It takes a long time and many people to produce this transformation, and this results in a pretty long book: 827 pages in the hard cover edition.  DeLillo is even more interested in conspiracy theories and secrets than in Nick's personal transformation, so along the way he shares a lot of arcane knowledge with the reader about the nuclear weapons industry, environmental degradation, and J. Edgar Hoover.      The connections between a few of the minor characters and subplots and the rest of the book are not obvious, and I would venture to say that a few of these could have been omitted without great harm.  Also, DeLillo's dialogue has a definite style:  his characters seem to hoard their words, and an awful lot of them don't finish their sentences.  Whether these are defects or not probably depends on the reader's tastes.  For me, this is a much better book than DeLillo's White Noise and Libra, which have been widely praised.

Ex Output:
POS


Ex Input:
A spanning collection of modern literature from the west. . The Bedford Guide to Literature brings together some of the most timeless and representative stories, poems, and dramas of wesetern culture to educate the reader on such literary concepts as Theme, Plot, Symbolisim, and various structures of short stories, poems, and plays. This book is easily understood by readers of many levels, andshould be enjoyed by al

Ex Output:
POS


Ex Input:
How I spent my vacation . There are two ways I can describe this book: as an assigned essay on &quot;How I Spent My Vacation,&quot; in which it might receive a passing grade in High School; or as a visit by your brother-in-law, the one you never really liked but tolerated for your sister's sake, who shares his superficial ideas as if they were deep insights.  I suppose there are people who will voluntarily submit to either, but I'm not one of them.  The author (he can only be called a writer in the most literal sense) has no insight to speak of, is manifestly incompetent at background research, and lacks any useful power of description.  He really should look up the meanings of words like &quot;masquerade&quot; and &quot;circumvent&quot; before he uses them. . . The real mystery is how something like this ever gets published

Ex Output:

NEG