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

[EX Q]: 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 A]: Negative

[EX Q]: The subject is trivial and boring. The writing skill mediocre.I was stuck in Sri Lanka and downloaded it by mistake when learning how to use my new kindle. Decided to take a look.Sorry, perhaps just not my type of book. It is no literature.
[EX A]: Negative

[EX Q]: Terry Pratchett's other books are a lot like well painted homes. There are several layers. "Small Gods" is like inviting over your friends to paint. There is one uneven coat of paint and they left masking tape on all of the edging in an unsuccessful attempt to miss it with their paintbrushes. The ending of the book (and middle and beginning too if truth be known) left me with the same vague feeling of dissatisfaction as when I realized that to get the place properly painted I would have to have another seperate group of friends and throw another 'paint party'.
[EX A]:
Negative