Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Bitter grapes make good vinegar, not good book reviews

I find it enlightening to see that all the "bad" reviews for this book are coming from people who are currently investment bankers. Sort of proves the authors' point, i.e. that a lot of bulge bracket bankers are bitter and washed up. This book is a quick and refreshing read and, if you don't have a vested interest in protecting your self-image, you'll love it. My wife and i both read it, and now we crack a smile every time we see a hotshot, slicked hair, cellphone sporting french fry jumping into a company car on park avenue.