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.

Blue Light . Walter Mosley is normally a detective writer, known for his Easy Rawlins stories. Blue Light is a diversion into a genre that would fall somewhere between science fiction and new age. Various people in northern California are zapped with a blue light that makes them weird. According to the book's cover flap, the light brings out the potential of any person it strikes. However in the book it simply magnifies their existing personality. A smart girl becomes really smart, a young girl with quick reflexes becomes something of a ninja, and a promiscuous wife becomes a sex goddess. Mr Mosley is a talented writer. His prose and some of his action sequences makes this book readable. Unfortunately there's little balance between good and evil, which is problematic since the whole second half of the book is one long buildup of suspense towards a final apocalyptic encounter. Even more unfortunate is the fact the long awaited encounter is tedious and uninteresting. There's a few great and captivating scenes in this book, but otherwise extremely little to recommend itself
NEG

This book has a special place in my heart . This is one of those rare treats in the literary world that grab your attention, keep you enthralled, and refuse to let you stop reading.  I read this book and literally did not sleep one night because I was too busy trying to finish the book.  But what makes this book so rare is not because of how good it is, but it's because how good everything is until the very end.  That's right, the incredible cop-out of an ending made me mad enough to hate the entire novel.  This is "deus ex machina" in its finest form.  This is unexcusable in my opinion.  I just don't get it.  I just don't understand how one can (seemingly) work so hard on a work of fiction only to screw everyone in the final pages.  I gave it two stars (as opposed to one) for fooling everyone into reading through this book.  This is by far and away my most dissappointing reading ever
NEG

Wooden, Didactic, and Cliched . My understanding of theoretical and practical physics (pick your subdiscipline) is more akin to catching a glimpse of an intricate structure in my peripheral vision than being able to read the architectural plans. But I do know a good book when I read one. Unfortunately, Gregory Benford's Cosm was not one of them. If he had wanted to explain to non-academics the differences between experimental and theoretical scientists, or to critique the workings of the scientific community, essays would have been a better milieu for the didactic opinions offered in this book. All of these are representative of the way a large proportion of academics see their work and the world, but a better novel would show the reader how these ideas impact the characters through dialogue and action.     The characters are wooden stereotypes alert to racial and sexist discriminations more reminiscent of the 1970s than what actually exists in today's universities (the novel is set in 2005). The clichés make an early appearance with "This far out from the city, people thought of quality entertainment as a six-pack of Coors and a bug zapper" (p. 8) and continue throughout.     All of this is mixed in with a bit of environmental angst as characters note suburban sprawl as an "upscale fungus" and see industrial park developments "crouched down, as if ashamed."     Benford has made modest attempts at providing glimpses of near-future technological advances.     In brief, a particle accelerator experiment of the main character, Alicia, results in the accidental creation of the Cosm, a universe which can be observed (sometimes directly, sometimes not) from inception to death throes. She is (unthrillingly) kidnapped and escapes. She displays rampant narcissism as she disregards authority and alternates between self-doubt and goddess-hood. And she finds love where she never thought to look.

NEG