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

Example Input: I own all of Amy Grant's other CD's and this is the worst! This album is so depressing, it makes sense when you realize that her marriage was on the rocks at the time. I find it amusing that she puts out one of her worst albums ever and her ex-husband (Gary Chapman) puts out one of his best. It seems like she is trying to break out of the "Gospel & Pop" mold that made her. I bet she does country (with Vince Gill) next.
Example Output: Negative

Example Input: It is extremely rare to see so many world famous super artists performing together in the same concert doing some of their greatest hits - Elton John, Sting, Mark Knofler, Carl Perkin, Eric Clapton, Paul McCartney, Phil Colins etc. You must own this DVD before it is out of stock. I would have given it 5 stars should the audio recording be slightly better. Go and buy this one with confidence. I am sure you will not regret.
Example Output: Positive

Example Input: This a the book everyone should have- from serious students of the stars, to consultants, to people who know nothing at all about astrology. It's brilliant, hilarious, and ORIGINAL. You won't find a lot of this information in any other astrology books and it is accurate-
Example Output:
Positive