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

Example Input: Game A+ On Sound TrackA+ On GraphicsA+ On Story LineI haven't had any of the problems that other's have reported like Slow-mo Lara, Audio drop out, Lara Falling out of the game World. To sum it up Tomb Raider AOD is a Best-Buy
Example Output: Positive

Example Input: This book should have been written more as a novel than a how to. This book goes into story like dimensions and there are others better written on the subject.
Example Output: Negative

Example Input: This, the first book in the series of "Earth's Children" is a gripping, fascinating introduction to the first of our thinking ancestors. Almost as if we were there.
Example Output:
Positive