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

Example Input: I am anxiously awaiting the arrival of my CD. I was at the concert in Atlanta and was mesmerized during the entire show. It was so surreal..to be in the company of Barbra and Il Divo. I know the CD will be great. It will be the first thing loaded in my car. And, it will probably stay in there for quite a while. There is and will be no other Barbra. I only wish she would tour more often.
Example Output: Positive

Example Input: Can not beat this item for the price, hands down!Excellent product with all the features you could want, period.
Example Output: Positive

Example Input: I liked the book but it wasn't one of my favorite reads. It ended up being a good book overall.
Example Output:
Positive