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

Example Input: The Decepticons play the Autobots like a used violin and demostrate Cybertron's AI still has a long way to go. While LaBeouf and Turturro act as if this movie is their character's last episode --- and they really over-act in this movie which is lacks the charm of the original TV cartoon.
Example Output: Negative

Example Input: Well another one of my first dvd purchases...I found this concert very poor...it did nothing for me... the sound quality was poor, The set on stage was quite good but lacked the final sparkle, Janet's performance was glitzy... but sadly something was missing...my advice is puchase Janet's later DVDS...
Example Output: Negative

Example Input: They shipped me CB-2LV not CB-2LX, I think a chimp that is mentally challenged could have read the label on the back of the charger and put it into the package. This is pathetic.
Example Output:
Negative