Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Example solution: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: Good read. If half of what is written in this book is true; then are world is much stranger than we can imagine.One of my favorite books.
Solution: Positive