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 Q]: Another fine book by the master . Poirot is given a case by his old pal Spence which takes him to a small village, where the fussy detective must unravel clues behind a crime in which the main  suspect has already been arrested and sentenced... Hercule's indignities at the run down boarding house he's staying at make up the bulk of the story's humor, but the mystery is great fun, too and I doubt anyone can guess the killer, unless you're paying amazingly close attention. The characters here are some of Agatha's most entertaining, and Mrs Oliver, with her uncanny intuition,  always makes a nice flighty side kick..
[EX A]: POS

[EX Q]: The other side of silence... . I have read this book, Mr. Moon's &quot;Divide and Quit&quot;, Mr. Khosla's work, &quot;Stern Reckoning&quot; amongst others on the subject of the Partition. Ms. Butalia's work is so saturated with her personal opinions and idealogy, that it almost ceases to be a work on history than the airing of one's thoughts and mindset. Almost a diatribe, if I may. I will agree with what john_galt_who has written. I think he has hit the nail on the head. I did not consider this book worth either the money or the time
[EX A]: NEG

[EX Q]: Samson Returns... . In the post-communist world, the Cold War espionage genre may seem a little dated. We have other concerns and fears on our minds now. But for reasons I'll get to below, this novel series is a stand-out from that era, and still well worth reading.    This book was actually written after the fall of communism, but the plot takes place a few years before it. In this book Samson returns to work for London Central and deals with a disastrous assignment in East Germany; an internal struggle to keep positions in a down-sizing agency; etc.  The book plot is interesting enough, but running alongside it are several series-length plots that continue to engross the reader: can Bernard and his wife Fiona rebuild their marriage after her apparent defection and return? In fact, can Fiona even recover from her ordeal? What about Gloria?    I just recently re-read the entire Bernard Samson series (of which this is the seventh out of nine novels). It is one of the best novel series I have ever read, and certainly one of the best espionage genre series ever. There are so many things to like about this series - the in-depth characterizations; the pithy observational asides about people and cultures; the references to multiple languages and their subtleties; the gritty European settings; the hidden plot developments and character motivations that the narrator either can't or won't see; etc.    The author claims that each of these books can be read on their own, and perhaps they could be. But you can get a lot more enjoyment out of it if you start at the beginning with _Berlin Game_ (or even better yet - start with the WWII prequel: _Winter_).
[EX A]:
POS