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

Example Input: It seems that there are several different versions of this TV movie available. Rumor has it that the movie that was originally broadcast on USA came in at 3 hours, there is a laser disc version of the movie that is 145 minutes long, and the VHS version is 120 minutes long. Unfortunately, the edits made to the VHS version are so extreme, abrupt, and awkward that it makes the movie virtually unwatchable. You can't help but feel that you're missing something.
Example Output: Negative

Example Input: Ordered two and tested them out: one had a bad pump but the return was easy.These airbeds are super cheap and great. Everyone who has slept on them says they are extremely comfortable. They hold the air well. I recommend them very highly
Example Output: Positive

Example Input: Great book, techniqes you can use! I love this book, the moves cause pain, but no injury. I really like section on finger locks. I did not have a problem with this book, the pictures were great. If you are in the martial arts, or looking in to them, GET THE BOOK.
Example Output:
Positive