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: This is a nice tool for beginners and intermediate level learners of MSA, but if you've been studying for a while you will find this a bit frustrating. The 4000 words utilized are good, but they won't take you to the next level. The lists are good, but it would be nice to be able to make your own. A section of Arabic proverbs would be very useful as well, as knowing them makes a real difference when dealing with native speakers. I would pay $25 for this, but no more.
A:
Positive