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

[EX Q]: Worked like a charm all over England. I haven't tried the other adaptors, but I found my MacBook to work just like it does here in the US, and there was no difficulty plugging into the outlets.
[EX A]: Positive

[EX Q]: At first I was disappointed that this wasn't a longer book, but then I realized that it is great to give away to curious friends and parents as an introduction to Love and Logic. I just wish it was a little cheaper.
[EX A]: Positive

[EX Q]: This book was well reviewed and I was very disappointed. Even if it's written for poor readers, does it have to read like Dick and Jane? Children are young, not simple-minded. Give kids real literature or they won't keep reading, they'll plug in to the media.
[EX A]:
Negative