Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Didn't Know What To Expect

I heard a lot about this book, though I never exactly knew what it was all about. After reading it, I am very satisfied. It contains a mix of humour and science fiction that I haven't encountered in past novels. It brought up several theories that made me think, including the impossible being the possible. This is a very entertaining book and easy to read. The plot is very easy to follow and the author wrote it in such a way that it is easy for an average joe to understand what is happening in the story.