Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: This book is a wonderful murder story

This book is a wonderful murder story. I rate this book a five because it's uniquely planned and the clues just keep on adding up. It's a detective story with a perfect ending. For those of you who like mysteries and murder cases unsolved, this book is for you. I recommend this book for ages older than 10 because it's a little on the wild side.