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
This isn't really a massager, it doesn't vibrate or sooth muscles. It is really more of a flashlight with a dinky infrared bulb in it that isn't powerful enough to do any good anyways. Save your money, folks. This one is a complete dud.
Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Negative