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: This has to be the most horrible printer in the world. If I could give it -5 stars I would. I just got a new digital camera and of course just got this printer. Now when I print my photos it has blurred lines through it and is all messed up. Its print quality is horrible. It may be a bad printer - but HP is no help at all. They keep saying to install new drivers, when it is clearly a hardware problem. I want to throw this thing away, unfortunatly I got it on clearance and I'm stuck with it. Don't buy this pile of junk.
Solution:
Negative