Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Let me give you an example: I've read this book with much expectation, it was very boring all through out the book
The answer to this example can be: Negative
Here is why: Review writer does not like the book because it was boring, therefore it is a negative review.

OK. solve this:
Here are two songbirds who are trying to be the best singers of all time. I hate this diva routine! I admit they do have maybe one catchy tune.But,this song is so irritating.Two divas trying to hit the highest notes in one song!I give Whitney one star for her almost Josephine Baker look at the Oscars,you looked fine! And her Children song from the 80's. And Mariah for her badly premeditated sexy image and her undying effort to be the best,major ego! Two divas who should SHUT UP!
Answer:
Negative