Part 1. Definition
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Part 2. Example
I've read this book with much expectation, it was very boring all through out the book
Answer: Negative
Explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Part 3. Exercise
When will people stop digging for the lowest possible price? I would have paid three times this price to have a quality product. After three pumps the check valve that holds the air in the rocket failed. You would push the pump in and all the air would get sucked out of the rocket when you pulled the pump back out. Then the mounting nipple snapped off when releasing the rocket from the clamp. Never worked once! Would like to find one that works, but they all look the same.
Answer:
Negative