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

[EX Q]: This thing is awful. Prints magenta only. Drives me crazy. I am going to go find a high building to throw it from.
[EX A]: Negative

[EX Q]: Currently, there are no wholes throughout the bed. But, for some reason when I wake up. The bed is already out of air. I only weigh 120lbs. I don't understand why it does that. Please save your money, when you start to have the same problem.
[EX A]: Negative

[EX Q]: I read this novel as a trilogy of Prelude to Foundation, Foundation and Second Foundation. The story of the last years of the Trantor Empire helped me understand a lot about our society. Even though I read it in College I still have Harry Seldon name stock in my mind. Isaac uses this story to present his theories on how science and religion influence our society. It is a marvelous saga of a loooong story of a new Empire (USA?) build after the fall of an old one (Britain?). More or less this will be a very entertaining textbook on social science of history. A must for a serious SCFI reader.
[EX A]:
Positive