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

Example Input: Tomb Raider: The Angel of Darkness is one of my favorites. The plot is very interesting, the graphics are good (but kind of shakey, at least on my computer), and it's pretty cool to be able to play another character (although Lara is always the best). The environment is very dark and grimacing though, and I find that if I play the game to much, I get a little depressed. It's still one of the best, though, and an awesome addition to the Tomb Raider series.
Example Output: Positive

Example Input: Great. Gives you a pause to remember the real meaning of Christmas. Nostalgic and well loved. Without the glitz and flash of so much that modern Christmas has become. Simple and straight forward, young to old can enjoy it.
Example Output: Positive

Example Input: Phil Collins singing "Take Me Home" and Mark Knopfler performing "Brothers in Arms" and "Money for Nothing" are fantastic; heck, Elton, McCartney, Sting, Eric Clapton, Sting, Jimmy Buffett, Carl Perkins and Arrow are all great. This is a wonderful concert; I just wish I could have heard it in person.This DVD looks fantastic and sounds terrific--especially on a DTS capable system like mind. I buy music DVD's only if I can see that they have DTS encoding on the disk (Amazon please take note). However, in a few places--just a couple--the sound quality of "Music for Monserrat" falls down a wee bit compared to other music DVD's I have; otherwise, I would have rated it 5 stars.That said, this is a great DVD for those like me who love these artists.
Example Output:
Positive