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

Example Input: I could not give this book a full 5 starts. For whatever reason, the book seemed to "bog-down" and I just wanted it to end. I will continue to read the series, but this one was not my favorite.
Example Output: Positive

Example Input: This book was required summer reading 2 years ago for my english II AP class. I thought it was really an amazing book. I loved the main character how strong willed she was even though she was more human and not cave man. I thought Auel did a great job writing it, but sometimes she was too descriptive about setting of the story. Description and imagery is good, but too much of it takes away from the story. I have read the rest of the series, but if you like this book you should read the others that go along with this series.thank you for your time,Loran
Example Output: Positive

Example Input: Why does this series need to be so much more expensive than most of the other TV shows? Especially considering these don't even have the original soundtrack. The first thing I think of when I think about My Three Sons is the great music that went along with the show, and it's missing from this way over-priced version. As much as I love My Three Sons, I will wait for the original version to be released at a reasonable price before I buy.
Example Output:
Negative