Given the task definition, example input & output, solve the new input case.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Output: Negative
Review writer does not like the book because it was boring, therefore it is a negative review.

New input case for you: Fantastic book! I was kept on the edge of my seat from beginning to end! This book is definitely going to be the start of an excellent series. The novel is based back in Venice, just around the decline of the Byzantium era. My favorite characters were without a doubt Manfred and Erik.This book is an excellent buy!
Output:
Positive