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

Example Input: This book came out a long time ago. I read it when it first came out and it introduced me into the world of ghosts and and lore. I was 12 years old then in 1982 and even now when I pick it up to read....it still takes me back to the feeling...when I first picked it up and sent shivers down my spine...in a fun way of course. The stories and the drawings were perfect together. A great book. I have all 3 volumes now and I hope he comes out with a 4th one soon.Thanks Alvin and Stephen for scaring the pants off of me when I was 12.
Example Output: 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: this charger does not have enough power to charge my Powerbook G4 while it is running. it will show the charger indicator back and forth from battery power to charging.But when I charge while it is off, it works perfect.I had requested a replacement once and the result was still the same.
Example Output:
Negative