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

Ex Input:
If you are not in really good shape this is a great product to get ready for P90X. It does get kind of boring because you are doing the same workouts every other day, but they do work. It is only about 30 mins but it is amazing how well it works.

Ex Output:
Positive

Ex Input:
Romantic, full of action and rich dialogue and imagery, this series will last forever (despite the epic fail of the Disney movie).

Ex Output:
Positive

Ex Input:
Paul Galdone captures the story just right with his wording and illustrations. This is a must-have for my grandchildren. You can't go wrong with a Paul Galdone illustrated folktale.

Ex Output:
Positive