Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What a flop!

This is the most boring book I have ever read! I loved the boxcar children books, and all of them I would rate better the 3 stars, but this one was so borring. MYSTERY ranch? What MYSTERY? The was no mystery in this book at all. The whole thing was just so borring. It's the worst boxcar book I have ever read, and I have read about 42 of their so far 87 books! It's just so borring.