Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
One example is below.
Q: I've read this book with much expectation, it was very boring all through out the book
A: Negative
Rationale: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: It clearly says on line this will work on a Mac OS system. The disk comes and it does not, only Windows . Do Not order this if you have a Mac!!!!!!!
A:
Negative