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.

Excellent introduction to the field for physicists . Perhaps the best feature of this book is that it aims to convey the theory of Lie algebras and Lie groups to physicists. In doing so, the author is careful to give a very simplistic approach so that one not familiar with the subject can understand it. Not to say that the book is elementary, since it builds rapidly into the far more interesting aspects of Lie Groups. A very good read
POS

No much change . Although this book has been written almost 50 years ago it still provides basic insight into our behavior in the modern world. 'Money, prestige and power are the main incentives today for the largest section of our population - that which is employed'. This probably holds still today whereas some of the major concerns of the fifties are not concerning people any more. A book to read and think about
POS

Off His Head: A Silly Plan to Replace the Welfare State . No serious economist would take such a proposal, well, seriously. In short, Murray's argument is foolish. Inflation would eat up the redistributed $10,000, and, unless the "gift" money were indexed to inflation, that $10,000 would be worth about $100 in a couple of years. Inflation would come in many forms: higher rents, higher food and fuel bills, etc. For example, an important reason for a food stamp being a food stamp is not just to ensure that the money is spent on food, but also to ensure that more paper money isn't loosed upon the economy causing unforeseen inflationary pressures. Food stamps do not cause inflation; Murray's program most certainly would. Buy the book if you want, but be sure to brush up on your economics as you read this absolute and utter nonsense.
NEG