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

Apparently this book was some sort of runaway bestseller in England (and from what I've heard, it isn't doing too bad here either), though this surprises me. I wouldn't have thought this book would be interesting to anyone who wasn't an English student or teacher, writer, editor, or someone else in the field. It goes to show you, you never can tell what is going to catch on. The book is well-written and really delves into matters of punctuation. One warning, it was written in England, so some of the rules are a little different than what we have over here.