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: I truly enjoyed it, but I have a couple concerns . Let me start by saying that I thoroughly enjoyed this work.  If you haven't read Michener before, this is a great place to start.  Typical of Michener, he tells the story of a region over the course of centuries in this book.  Michener has selected a particular river that feeds the Chesapeake, the Choptank, as his primary locale, but has populated it with geotypical persons, plantations, and towns, rather than any specific actual persons or towns from the Eastern Shore of the Chesapeake.    Having grown up in Maryland, I experienced a great deal of nostalgia for the areas he describes.  The characters he creates are believable and complex.  The stories he tells across the centuries are compelling.    I do have three concerns.  The first is minor -- in the green-covered paperback the word "scow" (a flat-bottomed boat) has been replaced with the word "snow" in every instance save one.  This makes for some odd reading, especially in the early chapters.    The second seems petty -- I actually believe there is not quite enough information in a nearly 1000-page novel.  He mentions guano trade, which significantly affected the Eastern Shore, only in one sentence at the end of the book.  He doesn't explain some of the early economies very clearly.  (With what was salt purchased from Tortuga?  There was no cash available, and credit with Fithian seems unlikely to have extended there.)  Islands other than the fictional Devon island (e.g. Tighlman Island) suddenly become important at the end of the book, and are referenced as "the old rivals of Patamoke."  If they are old rivals, why didn't they appear before?  Did this get cut out of the book?    My third concern is a very strange charge to levy against Michener.  As anyone who has seen the musical "South Pacific" knows, Michener is strongly opposed to racism.  Certainly in this book there are whites, blacks, and indians of the full range of character and talent.  However, the book still seems to have a strange racist undertone that I can't shake from my mind.  It comes from how Michener ties his story together across the centuries.  Every Janney is feckless (except for the one who becomes a Steed).  Every Steed is enterprising, although not necessarily industrious.  Every Turlock is craven.  Every Cater is proud, even if this is expressed differently across the generations.  Every Paxmore is upstanding, even the sad-sack Pusey Paxmore believes he is acting in an upstanding manor until he looks back on what he's done.  One Steed even refuses to acknowledge her own grandchildren because they have Turlock blood in them, and is praised by the author for doing so.    I realize that Michener was using a shorthand to help the reader keep characters straight across the centuries, but the result is rather too "geneticist," arguing that genes determine destiny
Example Output: POS

Example Input: Replica of her Amanda Quick's Scandal . If you've read her Amanda Quick novels, this contemporary story is almost the exact replica of the novel, "Scandal".    Heroine proposes to hero, who has a hidden agenda. Of course he's rich and he has almost the same history as "Scandal", whose father has gotten into debt and gets out of the picture leaving the family to deal w/ the debt, and the oldest child having to pay back debts that his father's friends/business associates want paid right away.  Of course hero grows up and wants vengence for this when he grows up. But his plans get waylaid when heroine interferes and convinces hero that vengence is not the right path.    The book is so similar that a couple of times I caught myself looking at the cover to make sure I had the right book. The only difference in this book is that one is set in contemporary times and the other in historical time
Example Output: NEG

Example Input: Revolutionary . I used to hate lap swimming but now I love it, and it's because of this book. Laughlin has reinvented swim instruction. He's made it fun. He's made it easy. And the resulting stroke is heaven.    The exercises do take some effort and dilligence to master. But if you go slow don't move on until you have mastered each exercise, as instructed, you'll open up a whole new world of swimming enjoyment. I often feel like I'm flying in the water. This former water buffalo now swims like a fish.     Note: there's a brand new Total Immersion book being touted on the TI website, which I haven't read. You may want to look into that, instead. Also, some reviews and TI suggest the DVD as the best method, but that wasn't the case for me. In my case, it was the clear, detailed instructions in the book that made it happen.
Example Output:
POS