Detailed Instructions: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
See one example below:
Problem: I've read this book with much expectation, it was very boring all through out the book
Solution: Negative
Explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: This is the reason for HD TV's to exist, to watch a movie like this with higher quality and sound that a theater. Just great, buy it if you are a fan, buy it if you love movies, buy it if you love HD, buy it if you have a TV and a couple of hours to enjoy a good action movie.
Solution:
Positive