Instruct: Classify Amazon reviews into positive or negative sentiment
Query: You must be kidding

One of the most painful books I have ever read. Not just badly written, it actually causes you pain to read it. Maybe that was the english experience the author was trying to convey, absolutely nothing else. This book cost me .50 at a used book store. I like the title, but you would have a better time banging your head against the wall. There are two people selling this book, they must be his cousins, mine helped heat my house.