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: This product would intermittently charge my computer, charging about half of the time and not charging the other half. It has 3 1/2 stars as an average from so many reviews because you get exactly what you pay for with this one - a cheap alternative.I was happy with the first one I bought. It lasted about a year and a half with heavy use. I thought I'd try another one but odds are you'll end up with a defective one of you buy a few of them.
A:
Negative