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 too have the same problem most recent reviewers have had: when I plug the charger in, it cycles between charging and not charging every two seconds. The computer doesn't end up charging.In addition, the version I have doesn't look like the picture on the Amazon web site, and doesn't have the power LED.Clearly there is an epidemic of defective chargers. And we, the customer, have to go to the hassle of obtaining a return authorization and sending it back.I notified the seller. I am also going to notify Amazon to research this topic, and take the product off the site until they can resolve the issue. Other than this charger, my experience with Amazon has been exemplary.I strongly suggest that if you too have bought one of these chargers and have had trouble with it, please post here.
Solution:
Negative