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

Example Input: The girl who replaces Megan Fox wears white the ENTIRE MOVIE, it borderlines stupidity. The movie is just garbage, I'm not gonna waste your time telling you every bad detail, but it almost seems that several things were done just to piss Megan Fox off completely ignoring story line.
Example Output: Negative

Example Input: This book was a wellspring of information for me as a newly diagnosed type 2 diabetic. Getting off the cycle of being told to eat complex carbs, seeing my blood glucose spike from doing just what I was told, and getting medications increased again and again, I read what Dr. Bernstein said with interest. After trying his recommendations I can say with no reservations that this book may have saved my life! I highly recommend it to anyone who has pre-diabetes or diabetes and hope that the general medical community opens their eyes. After only one day of this diet my blood glucose readings were close to normal, and continue to stay there, with less medication. My energy levels are high and I have felt better than I have in a long long time. Kudos to you Dr. Bernstein, for daring to say the truth! I recommend both his books and also Dr. Atkins Diabetes Revolution to anyone who wants to learn about diabetes and diet.
Example Output: Positive

Example Input: I hate this thing. It worked for about a month and that is it. It has driver problems. After 5 hours on the phone with Rhapsody, 2 hrs. with Sansa it still does not work. I have downloaded everything for this. It does not work. Waste of money, time. Very disappointed.
Example Output:
Negative