You will be given a definition of a task first, then some input of the task.
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.

... a different kind of book ... . ... This is a very good read ... this book offers much more than the usual approach of 'tell the dog to sit, and reward it with a treat' ... the author approaches the problem of bad dog behaviour from the owner's perspective, as well as from the dog's perspective ... a holistic approach that avoids harsh punishment ... The author tells us that in order to correct a dog, oftentimes we must first as owners correct ourselves, our approach ... our whole attitude ... we are encouraged to try and learn the nature of dogs, their instincts and propensities ... the numerous case studies are also extremely useful ... All in all, a very good book, informative, sensible and effective
Output:
POS