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 movie was not an original concept. The jokes were lame, as were the performances. The writer and director disappointed the audience by using Adam Sandler, Seth Rogen and Jonah Hill as a box office draw. When in fact, it wasn't worth the money to see this film in a theatre.
Solution:
Negative