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: For 36 years I have instructed a wide variety of novices, experts and "so-called" experts. This book will take you from nothing - to all you really need to know (unless you are into "one-upsmanship" or trying to prove something about your masculinity or lack of it). For those (who are using this forum to display their resumes) if you are insecure then you will take your stack of books and your ego and look for anything that might have been left out. You might even list all the books you have, but the truth is, if you are really good at real-life situations, whether actual military combat, law enforcement or the usual combat games, ....all the book-learning in the world is no replacement. This book is well worth what you pay for it, and that's the point of these reviews, not better-than-thou cynicism from would be intellectuals.
A:
Positive