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

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: The lead actress does a poor job of acting.Was recently in Ireland and stopped at the location of this film.
Example Output: Negative

Example Input: After using this printer for one year (home use), a plastic bracket to which a spring attaches to maintain belt tension on the print cartridge carriage broke. Rather than try to get a new part, I'm going to throw this printer away and buy a new one.
Example Output:
Negative