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

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: Because I remember loving and being absolutely terrified at these books when I was a kid, I recently purchased all 3 and just received them today. To my horror (and not in a good way) I found that they've published them with a DIFFERENT ILLUSTRATOR! With all due respect to Mr. Helmquist (the new guy) and certainly to Mr. Schwartz (the original author), these books were made for me by the art of Stephen Gammell. I'm sure they did this because so many parents tried to get the books banned in their day because of the ghastly drawings, but this is really a tragedy. I would suggest looking elsewhere for original copies of the books as they should be seen. Don't buy them here - you'll be missing out on part of what made these books so wonderful in the first place.
Example Output: Negative

Example Input: i read this book a little over a year ago when i was 14, this book was so good and it was told like a story not just from some 3rd person view, i felt like i was in the books world it was that good, this book kept getting more and more intriging as i turned the pages i think if i remeber correctly i finshed the book in 4 days, cause it was so damn good... i hella recomend this book to everyone, pretty scary too and i liked the pictures
Example Output:
Positive