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: I am now on my second Pioneer DVR 633HS.It's got to be the biggest piece of junk I have ever owned. They last about 2 months(or less), after that they do not respond to any controls and keep turning on and off on their own. My first one got so hot it could have set the house on fire had I not caught it. The hard drive locks up and keeps sounding like an old pulse tone telephone.Did Pioneer get rid of all educated engineers?I noticed this unit cannot even be purchased on -line at any web site anymore. This is sad after only a few months on the market. I will unload this piece of junk back to the dealer and buy any other brand but another Pioneer.
Solution:
Negative