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

Ex Input:
All of the good things said about "Helter Skelter" is true of the Kindle edition. What's more the Kindle edition has hyperlinked footnotes that actually work and take you instantly to Bugliosi's notes. But the trade-off is that with the Kindle edition THERE ARE NO PICTURES because of licensing issues. The print edition has lots of pictures, but many of the crime-scene photo's are censored.

Ex Output:
Positive

Ex Input:
Thia is the saddest story I have ever read! Poor girl---she doesn't have a chance with finding a happy life! The cards are all stacked against her from the git-go!

Ex Output:
Negative

Ex Input:
What a great read = tips on cooking,lovemaking and Italian insults. Laughed and laughed. Thanks. Looking forward to film.

Ex Output:
Positive