Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This Book is Fabulously Worth It

A book I have read as a class has been the City of Ember. This was a great book. I could read it a lot and never get bored of it. It is about a city that has no electricity and supplies are running out and some people are trying to get out of Ember, but they run into some problems and it becomes very tough for them to get out. I think you should read this because it is very exciting and it makes you want to keep reading it. After every chapter it makes you want to keep reading and not stop. So if you try to read this book I think you will enjoy this.