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

Example Input: My wife is very happy with this set of dishes that we recently purchased through Amazon.com. They are everything she had hoped and expected them to be. My happiness is more related to the purchasing experience. One dish arrived broken and I was very pleased with the efficient, fast and convenient way you handled the replacement. Thanks for a good buying experience.Bob Cordes
Example Output: Positive

Example Input: Worked like a charm all over England. I haven't tried the other adaptors, but I found my MacBook to work just like it does here in the US, and there was no difficulty plugging into the outlets.
Example Output: Positive

Example Input: An earthquake opens a crack in the earth, the parents fall in, and it slams shut!?!?!? That's the best Auel could do? Has that EVER happened in history to ANYONE?I read that and threw the book in the trash. And it wasn't even my copy!
Example Output:
Negative