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

Now, solve this: I wasn't sure what to think of the movie since I remembered hearing little about it. But it has become one of my favorite movies, especially war movies that try to tell some real truth about the time frames they cover. The aerial scenes are outstanding and it's actually good to know they could be done without injuries or crashes like some of the first World War I movies (Dawn Patrol comes to mind). The movie also pulls no punches about there being no glory in dogfights: if you were shot down, if the enemy's bullets didn't kill you the fall and crash most likely would. I believe the movie is excellent. The DVD arrived two days earlier than expected, so the seller gets a solid A, not only for speed of shipment but for speed of receipt. DVD in perfect condition.
Solution:
Positive