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

[EX Q]: This portable heater is good for use in your office, den or sleeping area..It is quiet and efficient,and is good for spot heating...please keep away from drapes or rugs,and small children,who might mistake this heater for a toy...Otherwise this is a good deal...Mine came with a remote to adjust setttings more easily...4 star rated...
[EX A]: Positive

[EX Q]: A really fun book, well worth your time if you like Pratchett. None of our old pals [Rincewind, Gaspode, Vimes, Susan] put in an appearence [other than the guy WHO TALKS LIKE THIS and an old monk with a broom, and they but briefly], but it does add some info to the overall Discworld mythology, and provides some laughs as well.
[EX A]: Positive

[EX Q]: Great, another socially aware electro-dance record. I can't wait for the an Iraqi to come out with one about the current US led invasion.
[EX A]:
Negative