Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Example input: I've read this book with much expectation, it was very boring all through out the book
Example output: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: This book by Vincent Bugliosi is by far the best book I have ever read. The Manson murders being the most interesting subject I have ever researched. Being the prosector in the longest trial in American history the author is also an extremly good writer! I recommend this book to anyone and it is well worth the money
A:
Positive