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 liked the book. The mix of explanations of the painting and his life was very descriptive. I learned a lot about his friends and famliy. The book just reminds me that in every genius there's a lunatic.
A:
Negative