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: Do not buy this book . Words cannot describe how ripped off and disappointed I feel about buying this book.     Having read RDPD and CFQ in the Kiyosaki range previously and finding them great, I thought this book would be great as well. I'm sorry to say it's the worst book I've ever read. The entire book is a blatant sales brochure for all his other books.     There's all these annoying references where you get a little bit of information and then instructions that if you want to know more, you need to buy one of his other books.  I didn't get any useful information and it's certainly not a 'how to' book. I thought I would be reading about him and his wife's story but all I got was the same few points said over and over again. He doesn't even try to say them in a different way.    The other annoying thing was his promotion of network marketing as a good business option. It was obviously done to help sweeten the deal he has with the network marketing association who recommend all his books to their members.     I could seriously go on and on about why you shouldn't waste your money on this book but I won't.    I have NEVER written a book review on amazon before as I have never felt so strongly about a book. I generally feel if I get even just 1 thing out of reading a book then it was well worth it. In this case I didn't get anything out of it and felt really used and taken advantage of which is why I decided to post this review.     I hope it saves someone else from wasting their money. Buying this book WILL NOT HELP YOU RETIRE YOUNG OR RETIRE RICH
Example Output: NEG

Example Input: A great book for me at this time in my life . I am in the infant stages of my conversion to Judaism, and this book really cemented my conviction that this is the right decision for me.  I felt that Rabbi Kushner clearly explained what Judaism is all about to him and, in many instances, to me as well.  The chapter dealing with the dietary laws I found particularly helpful and enlightening, as this is one of the most intimidating factors for me in converting to Judaism and living as an observant Jew.  Rabbi Kushner's explanations helped me understand the dietary laws in a different way, as allowing the sacred to enter into mealtimes -- which takes the focus off food -- and I immediately began "keeping kosher" to an extent.      I didn't feel that this book slammed Christianity, but I'm not a Christian so my perspective is decidedly one-sided.  I did feel that this is a book about Judaism, not about Christianity.  There are places where Rabbi Kushner compares and contrasts the two religions, but I didn't get the sense that he was saying, "Our way is better than your way."  I DID get the sense that he is a man who feels deeply connected to God, and sees his religion as the source of that connection.  While it's likely that a (relatively) small number Christians would read this book, it seems to be intended for Jews -- a book for Jews about Judaism, written by a Jew.  The references to Christianity did not seem to be an instruction guide on Christianity so much as a way for Jews to understand their own religion within the context of modern American society, which is predominantly Christian.    If you are interested in learning more about Judaism -- what do Jews believe? what is the Jewish religion all about? -- then I think this is a very good introduction.  Rabbi Kushner's explanations are easy to read and understand and at the same time very enlightening.  Don't let this be the extent of your studies into Judaism, but it is a fine place to start
Example Output: POS

Example Input: F.I. . Even as a child, and as an African, I have always been interested in the TRUE HISTORY of my continent not told by the so called conqueror, which has always shown people who rebel in a disgustingly bad and unture light. Especially the american majority, who somehow get amnesia regarding the how and why this STOLEN LAND got its so called democracy.  Once again, this book is very detailed and tells how and why really the ENTIRE CONTINENT OF AFRICA, was inflicted with dirty politics (GOLDS,DIAMONDS, MINERAL WEALTH, ETC.),for the ill gotten gaines and total disregard of the indgenous people by europe and the united HATES of america.ESPECIALLY THOSE OF COLOUR
Example Output:
POS