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

[Q]: This is a wonderfully entertaining, well-written and thought provoking story. The author did a superb job of developing character and plot, leaving the reader with a lust for the story to continue.
[A]: Positive


[Q]: These are only meant for use as temporary or guest bedding, but I've been in a situation where I am using this item daily as my bed for over a month now. I am a large person. It has held up beautifully. I add air maybe once every 7-10 days. The flocked top is great, holding sheets in place. It is so comfortable, my back and general body pain has improved dramatically since using it! I suspect that when my permanent bed arrives, this little bed will serve long and well as guest bedding.
[A]: Positive


[Q]: This knife is terrible. It was cheap, so I should have been dubious about quality. Save your money for a better knife since you can easily cut yourself with this knife. It's made of cheap plastic and soft metal parts, so don't count on the blade locking properly. It's an insult to even have a fire fighter logo. Don't make the same mistake in buying this poorly constructed tool.
[A]:
Negative