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

Let me give you an example: I've read this book with much expectation, it was very boring all through out the book
The answer to this example can be: Negative
Here is why: Review writer does not like the book because it was boring, therefore it is a negative review.

OK. solve this:
This is what I listen to when I'm in my Adult Contemporary mood. (Well it's Kershaw more often than it is Springsteen) I've heard of all Nik's old 80's albums, and this really makes them sound bad. I mean, of course, songs such as "The Riddle" and "Wouldn't It Be Good" are better than anything on earth, but this new material is consistently impressive."Billy" is instantly likeable, while songs like "Shine On" and "Made in Heaven" are the slower favourites. "God Bless" is the only stinker, while every other song entertains us with cool guitars and songs that really grow on you over time.I guess all I'm trying, to say, it's worth the wait when an artist perfects their art instead of churning out rubbish twice a year.
Answer:
Positive