Definition: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: I'm a late comer to Terry Pratchett but have utterly gotten caught up in the world he's created and the incredibly intelligent books. While I greatly enjoy the book itself, I was highly disappointed with the ebook because it is missing numerous pages in the version for the iphone. Unfortunately I passed the deadline for a return. Missing one or two pages is not appropriate but not a big deal. There were at least 4 places that were missing 4-6 pages in the iphone version.
Output:
Negative