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 bought this for my 4 year old's birthday. While I think the graphics are really great, the concept stinks. My daughter told me she thinks it is boring (and she LOVES Barbie) and last night she even said she hates it! At least my 15 month old screams with delight at the graphics when her older sister plays with it.
Solution:
Negative