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

Q: Great American classic that you can get for free on kindle. I was supposed to read this back in high school but wasn't not interested at the time. But now with the benefit of age I can really appreciate it.

A: Positive
****
Q: Experienced no problems with the order. The book came within the estimated delivery date. The book matched the description given.

A: Positive
****
Q: This went off in the middle of the night after my husband and I had had it for several years. We had to look up online the directions because it didn't have a clear beep for a warning and for a battery replacement. It was ridiculous. I would not recommend it. I want one that clearly tells me when to vacate the house and call the fire department.

A:
Negative
****