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

[EX Q]: The old saying hollywood never lost money underestimating the intelligence of the american people really hits you in the groin with this head shaker of a release.While the orignal classic rollerball hasn't even gotten an anamorphic dvd release, let alone a blu-ray!
[EX A]: Negative

[EX Q]: This thing is a major piece of junk. It doesn't stick to the wall like it claims. You have to stand to play with it (cause all the cool stuff is at the top), and the extension pieces constantly fall off. I actually screwed it to the wall, but that lasted a whole 10 minutes as it wouldn't stay screwed into the wall. Then the scenery kept falling. Save your money and buy the cool batmobile or something.
[EX A]: Negative

[EX Q]: Absolutely charming book, great for all grade levels. I usually run for the gory, werewolfie or anne boleynesque books, but it was refreshing to pick up something sweet AND interesting for a change. Buy this for the MG reader in your life, but read it for yourself first!
[EX A]:
Positive