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

Let me give you an example: I've read this book with much expectation, it was very boring all through out the book
The answer to this example can be: Negative
Here is why: Review writer does not like the book because it was boring, therefore it is a negative review.

OK. solve this:
I've never read a book that so profoundly hit me in the heart. This is such an incredible account of one families struggle with something that should never happen to anyone. I read the book in two hours and can't wait to pass Jeanine Cummins name on to everyone I know. This book puts the perspective on violent crimes back where it should be, on the victims. Though this book was about her family Ms. Cummins was able to write the book without turning the guilty into monsters, she made them human which is even scarier. They took three kids and ruined their world and the world of their families. When I finished the book I also realized that the guilty also made Ms. Cummins family that much stronger. Congratulations on such a fine book.
Answer:
Positive