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 got this for my 8 year old son because he loves hand held games. He played it the 1st day he got it, but it was difficult, involved alot of shaking. I also had to take it apart because he pressed the reset button & it stopped working at all. We put it away for awhile & the next time he tried to use it, no battles, no matter how much we shake, it is useless now. How can they make such junk?
Solution:
Negative