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

Ex Input:
There are people who will start reading this book then about 100 pages into it realize that it's going nowhere fast. Take my advice and keep reading. It gets much better, and more interesting. The ending is really good, and might have even upped this review a star.ac

Ex Output:
Positive


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:
I bought this boombox for a kitchen that I knew needed to be loud. While the Hummer MusiXstation looks amazing and has pretty good functionality, the sound quality and volume is very low. To be honest, I wish it sounded like it looked. The radio is not very good at picking up FM stations, either. It does have a Audio in jack, which was very helpful and not available on a lot of other models.I was not impressed overall, and we switched back to our 1998 boombox in the kitchen.Pros: Looks amazing, seems durable, cool features (including audio in)Cons: Not very loud, sound quality is decent at best, subwoofer is a joke, digital FM radio not very receptive

Ex Output:

Negative