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: not good no examples . There were no complete examples, I could not understand anything. Ada must be very hard, it is impossible to learn anything from the book
Example Output: NEG

Example Input: DO NOT BUY THIS BOOK!!!!! . The rub with this product is that it contains quizes and a review test BUT THEY DO NOT PROVIDE THE ANSWERS!!!!!  I spoke with the publisher and I was told that the book is for classroom use only and the answers will not be provided.  If you are studying for the FL RE sales exam, this book is virtually usless without the answer key.  SHAME ON AMAZON FOR SELLING THIS PRODUCT WITHOUT DISCLOSURE!
Example Output: NEG

Example Input: Brilliant viewpoints! . Why of course the Chinese government was entirely to blame for the opium imported by the Scotsmen Jardine and Matheson!  It just like when Americans have a cocaine problem, it is the US government, and not the drug smugglers and dealers, that has the responsibility.  And if the Chinese folks got addicted to this narcotic, well, it's for their own good you know.  At least that's Herman's view.  Also, the Scots who thus created Hong Kong for the opium trade did not do all this hard work for money or for themselves.  Yes, they did make a little money but that's not why they were in China.  They imported opium in order to create Hong Kong so that one day it will become a "premier" commercial city of the Orient, with the ultimate goal of teaching China western financial and economic techniques.  If it were not for Jardine and Matheson, how could China have become a great power today, or a candidate superpower tomorrow?  No, these two far-sighted Scots had this noble, lofty goal in mind when they came to China, nothing lesss.  When historians condemn these two for their "crime" (drug-dealing, that is) they forget that they are actually heroes, as Herman sees so clearly and correctly.  And so it is completely unjust that a brilliant people like the Scots don't even have a country they can call their own while the "barbaric" and "decadent" Chinese do
Example Output:
NEG