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 Input:
Cherry Jones +++ . The thing about audio books is the reader, who can make or break the aural experience.  Cherry Jones makes what would otherwise be a dated novel come alive.  Her ability to portray multiple characters of both genders is astonishing

Ex Output:
POS


Ex Input:
sweetness! . I am loving this book, but let's get one thing straight.  This is not a cupcake book, as the cover would lead you to believe.  In fact, I only saw one reference to a cupcake from a regular layer cake recipe, even though it is written by one of the owners of New York's famed Magnolia Bakery, which has gained notoriety for its cupcakes.  At any rate, the recipes contained in this book are pure magic.  So far I have made the white layer cake with chocolate chips and peanut butter icing (as suggested), and it was quite a hit with friends and family.  Other recipes I'm going to try in the next few days are the sour cream coffee cake and the buttercup golden layer cake.  This book is all about making things from scratch like they did in the olden days, but you could also mix and match homemade cakes with store-bought icing or vice-versa.  Read the introductory section with tips and pay attention to the details (e.g., use cake flour instead of all-purpose or self-rising, use butter/sour cream at room temp., etc.), which will make all the difference.  The section with icing recipes is short but covers a variety of flavors.  It's definitely not an Atkins-friendly cookbook or any of that, so you know it's good for your sweet tooth!  I would definitely recommend this book to any baker, novice or expert, and am looking forward to buying 'The Magnolia Bakery Cookbook' (co-authored by Appel) next

Ex Output:
POS


Ex Input:
Easy to Understand, Hard to Put Down . This book is a brilliant example of mathematics at it's best. It is from Scientific American, so you know you can trust it. And it is written at an understandable level, quite a feat for many very complex topics. The book features incredible illustrations, every concept is laid out in a colorful image. If you like the works of M.C. Escher, you will like this book. It has a lot of substance to it, and it will keep you busy thinking for a long time, and that's time well spen

Ex Output:

POS