Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your time

I'm sorry, but this was one of the worst books I've ever read. Usually I like John Grisham books, and I was looking forward to reading this when it came out. The story was slow, nothing really happened, and the ending is so predictable that you want to ask for your money back. This could've been a good book, but the plot never developed.