Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a good read

If you are looking to lose weight and get in shape, this is a really good book to have. No fad diets, no tricks, no starvation; just good, sound, nutritional advice combined with workout routines for everyone from beginners to hard core muscle heads. I have followed one of the suggested routines in this book and so far I have lost 41 pounds in 10 weeks.