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

Example input: I've read this book with much expectation, it was very boring all through out the book
Example output: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: I bought "The Grass Is Blue" on the strength of the rave reviews which appear below. They didn't lie. This is one of the finest things I have ever heard, from ANY musical genre. I played it for my wife, who has zero bluegrass background, and she was just swept away by it. Every cut is strong, but the odd-numbered tracks appeal to me most, with "Steady As the Rain" being a particular highlight. Be warned, "The Grass Is Blue" may permanently hijack your musical tastes. Now when I listen to blues and rock standards that used to appeal, I just can't sustain interest for more than a few minutes. Nothing compares to the power, the purity, the soul that Dolly Parton delivers. I am compelled to go back to "The Grass Is Blue" for another deep drought of that cool living water. This is one album I never want to live without.
A:
Positive