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: It took me quite sometime to actually read 'Clan of the Cave Bear', and when I did, I could finally see why it was so popular, but there was much more...Valley of the Horses followed, and there was no turning back, I read all three in one weekend. And then Plans of Passage hit the book stores, and, well like so many can't wait for the fifth, and here's counting on a sixth. I thank Jean for such an impressive story. Thanks again:)
A:
Positive