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

Now, solve this: I hate this thing. It worked for about a month and that is it. It has driver problems. After 5 hours on the phone with Rhapsody, 2 hrs. with Sansa it still does not work. I have downloaded everything for this. It does not work. Waste of money, time. Very disappointed.
Solution:
Negative