Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Example solution: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: Great value for a surge protector. I've got 'em on lots of electronics (printers, phones, laptops) that don't need a full power strip or universal power supply (UPS). Very portable for laptops, in case you're travelling.
Solution: Positive