Given the task definition and input, reply with output. 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.

Happiness : A Guide to Developing Life's Most Important Skill . This is a scientific review of the Buddhist guide to a happy life. Adds great credence to this approach and the Buddhist philosophy. Ricard was part of the research and is a practicing Buddhist. A good book to reread many times
POS