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 product has only one thing going for it. It's nice looking. Besides that, it's totally worthless. Cheaply made. Almost impossible to remove without either dropping it or having your fingers slip off of it which usually results in your fingernails scraping across the surface of your lens or lens filter. After 10 drops and 4 fingernail scrapes, I ordered the following product.Mennon Pro Center Pinch 67mm Snap-On Lens Cap with Leash. It's much better. Sturdily made, snaps off and on very easily, same price as the Canon. Only drawback - no nice Canon logo.
Answer:
Negative