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

Example Input: If you believe people have an eternal soul, this book is not for you. If you believe death is the end physically and spiritually, and you want your child to believe that, maybe you will like this book. I found it not comforting at all, and not what I want my child to believe.
Example Output: Negative

Example Input: I ordered this DVD and received a substitute I never received the DVD I ordered from Importcds (the Vendor). I contacted them and did not recieve any feedback. I can't rate a DVD I have never seen. I didn't bother to send it back because it would have cost me more that I orginally paid for it. In the future I will watch for the name of the person and/or persons I am buying from. I thought they were a good company. I understand a simple mistake but, to not get a response at all is not good businees sense. I spend hundreds of dollars a month on Amazon.com building my DVD collection. I guess I will be more careful in the future.
Example Output: Negative

Example Input: These eMarker guys are out of business, so not sure if this thing even works any longer.
Example Output:
Negative