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

Ex Input:
This is a wonderfully entertaining, well-written and thought provoking story. The author did a superb job of developing character and plot, leaving the reader with a lust for the story to continue.

Ex Output:
Positive


Ex Input:
why am I being asked to review a product I didn't purchase. Need to fix the system or allow me to delete the request.

Ex Output:
Negative


Ex Input:
I was surprised to see that the item was used. Advertised as new. Would have liked the new ones stead got used.

Ex Output:

Negative