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

Example Input: At 60 pages,this is over-priced and not a course for adults. As basic instruction for those 10 and under, it is probably okay. For anyone who even doodles while talking on the phone- forget it!
Example Output: Negative

Example Input: Great American classic that you can get for free on kindle. I was supposed to read this back in high school but wasn't not interested at the time. But now with the benefit of age I can really appreciate it.
Example Output: Positive

Example Input: FINALLY!! A REAL historian who writes from a position of sympathy towards modern witches and pagans while unceremoniously debunking most all of the pet fantasies held by many feminist oriented authors today. Of course, I don't agree with ALL of what he says here, but boy did he ever open a can of worms and make me think! I am so glad this book is out there and hope that it finds its way into the syllabus of some of the Christian colleges. I know....but we can hope, right?
Example Output:
Positive