Instruct: Classify Amazon reviews into positive or negative sentiment
Query: World War Z(ero)!

I still can't figure out how so many people can give this book five stars. It's a complete mystery to me. Everything in the book gets repeated over and over again. About the only thing that changes are the locations. You could take any twenty-five pages and switch them with another twenty-five pages somewhere else in the book and the "story" would still be the same. Readers wouldn't even notice the difference because it wouldn't change the story one bit. The author had some very good ideas but he never developed any of them. I hope he is NOT the one who wrote the screen play for the movie version because he would ruin it. The trailer looks great and the movie could be fantastic if the right people put it together as a story that flows from start to finish.