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: I do like the book and use it alot for school. The part that I use most is the Directory of Words Cited. Unfortunately, many times the exact type of work to be cited is not listed. For instance, a book with an editor in multiple volumes in an edition other than the first is not covered. Neither is an article from a journal obtained from a database.
A:
Positive