Instruct: Classify a given review into positive or negative sentiment.
Query: Excellent book I've read in a long time.

This has been an eye opening experience. My wife seemed to have know about this years ago and has been working this way for years and I've always doubted what she was doing. But after reading this book I've realized that she was on the right track the entire time. I would recommend this book to anyone who wants to get out of the rut they are in or have never been able to prosper.