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
I would like to say that all of my dealings with Amazon have been wonderful, fast, and not a problem. The only reason I gave this unit a below rating is because the pictures showed a unit that just plugged into the wall, like the one that came with camera. When it arrived, I opened it up and I found a plug-in cable, then a charging box (gray), plus a battery. So I was not happy about the pictures not being the same one as I thought I had ordered, I was expecting the one with the folding prongs. Otherwise, Amazon would get a 5 on this review.
Answer:
Negative