You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

I've read this book with much expectation, it was very boring all through out the book
Solution: Negative
Why? Review writer does not like the book because it was boring, therefore it is a negative review.

New input: Not much to say it was a true Cannon battery not a generic battery which don't seem to last as long. I had bought generics before and had problems with them retaining the charge after a while. It's worth the cost to have an actual Cannon product. It was sent promptly and it works
Solution:
Positive