Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
One example is below.
Q: I've read this book with much expectation, it was very boring all through out the book
A: Negative
Rationale: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: Takes more time to cut open the box than it does to plug in. Just plug it in, hold the test button, stick your fingers in your ears so you don't do deaf, and your all done. I've used First Alert products for many years, and they just work. They do wear out (5-7 years), but they will alert you when that time comes, usually with a chirping, like other detectors do.Simple, easy to use, no fuss peace of mind unit. Plug it in near air vents in bedrooms or just in open ares for non-living quarters and that's it!
A:
Positive