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

Example Input: While old and out of print, this book is a very good way to learn the basics of photography. You have to ignore most of the references to digital cameras as the technology has changed a lot.
Example Output: Positive

Example Input: not bad but be warned you need to buy extra play-doh at local store before handing it to the kid's
Example Output: Positive

Example Input: I enjoyed this book very much. Saw a lot of myself in the pages. Some good and some bad, I think all females should read as rite of passage. Will enlighten and encourage a different behavior. A book that should be read and passed on to others.
Example Output:
Positive