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

Example Input: If you're willing to trade a little style for some substance and save some money in the bargain, this is a very recommendable device. My Apple PowerBook power supply died in what is apparently typical fashion - sparking, crumbling wire where it meets the brick - and none of the Apple stores or CompUSAs in Atlanta had any in stock (which is curious in itself). I resorted to Amazon and decided to try this one out and I've been pretty happy with it. It seems sturdily constructed, and the breakaway cable is a surprisingly handy way to save on tangles. I do miss the plug-in charging light, but that's about it.
Example Output: Positive

Example Input: The book was boring and to far fetched to be entertaining. The characters were not believable and left me with wanting to many unanswered questions. The author took to many liberties with facts. All in all, I just didn't care for the book, skipped thru pages to end it so I could go on to more enjoyable reading. Amazon offers so many options and choices that I'm bound to pick a lemon once in awhile. I always read the brief description of the book before I buy but in this book that wasn't enough.
Example Output: Negative

Example Input: I really don't think I would buy the blu ray dvd movie, but when I saw it at an IMAC theater in 3-D, it was increadable. That's the only way to see this movie. Without the 3-D effects, it's not that great.
Example Output:
Negative