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: This is a fantastic life after death experience written by a physician, whose credentials give greater weight to his testimony. He leads up to this miraculous event by recounting his life experiences, a bit of biography. I thoroughly enjoyed this book and it encouraged me tremendously after the recent death of my son, who had also proclaimed his faith in Christ before God took him. I enjoyed the book so much, I read it twice.
A:
Positive