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 ordered the headphone extension (1 male end/1 female end) and got a 15 foot auxiliary plug (2 male ends). I decided that it would be cheaper to buy a stereo coupler of 2 female ends than it would be to ship it back.
A:
Negative