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

[EX Q]: As most people readers know, Jack Higgins has written many fine action-packed books. However, this book reads like a twelve-year-old wrote it. The characters are so transparent they could be ghosts.The author and his publishing house must really need the money to rip of the public in this manner. This is the last book I read by this author. One can only rest on his laurels for so long. I'm glad this book was handed down to me or I would have written a really nasty review.
[EX A]: Negative

[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]: I ordered for use when company came-my niece slept on this once and ended up on the floor after one night. I cannot recommend this to anyone.
[EX A]:
Negative