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.

Beautiful Mystery of the Universe . Lonely Hearts of the Cosmos is the greatest book every written about the search for ultimate answers about the universe. But the science is secondary to the gallery of scientists who are revealed in all their pettiness, persistence and ultimately greatness. The story of Allan Sandage - from boyhood dreamer to discoverer of mysteries - could be a book in itself. This is a book of almost poetic prose - a real page-turner that I couldn't set down. Get it toda
Output:
POS