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

Ex Input:
The book covers several generations, so with each generation you have to re-learn all the characters. It is difficult to keep track of who's who when every time you get to know the cast, 200 years suddenly pass and we're in the middle of a new crisis. I didn't read the whole series because of this -- it was obnoxious.

Ex Output:
Negative

Ex Input:
The adapter worked fine for my power book g4 for a few months and then it broke. Nothing physically happened to the adapter for it to break, but suddenly it just wouldn't charge any more. What's interesting is that the blue light on the brick goes on when plugged in to a power source, but if I plug the cable that attaches the computer to the brick in, the light goes out and it doesn't charge.

Ex Output:
Negative

Ex Input:
50,000 years in the future and they are still smoking cigarettes, reading newspapers, the main power source is nuclear energy..and they carry nuclear guns??? A kid in the 2nd grade has more imagination!I almost made it to the end. It had gotten so absurd that it finally just drifted off to a shelf....What I didn't like:1) Lack of imagination (see above).2) Cardboard characters. Nobody to really cheer for..either the character is a pencil necked geek or some babbling fool.3) False religion mumbo jumbo: never would of worked IF most/allthe priests new it was a farce.Avoid unless you need something to stoke the fire with next winter.

Ex Output:
Negative