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: I've had this for 3 months now and it gets used about once a week and so far has held up well. So easy to use and takes no time at all. I would recommend this product.
A:
Positive