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

Problem: This book did give the reader some very interesting facts and folk lore about archaeological discoveries that could prove the existence of superior "giant" races in the Americas. The only thing I did not like about the book (except for the grammatical errors), was that the author would mention some dramatic event (such as the discovery of giants' bones in a mound) and leave the reader hanging after a couple of paragraphs about the find. This book could have easily been an entire set of volumes, should everything have been explained in detail. Overall, it was a very interesting book leaving the reader wanting to know more about certain discoveries and theories within the book.
Solution: Positive