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: What a deal. A nice collection of 40's small band blues and swing by McShann and friends. A great introduction to the world of McShann.
A:
Positive