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: Although the music of this CD was just what I needed to teach a lesson on early jazz and it's influence on the artist, Mondrian, I was disappointed that it did not have the cover sheet shown or any information about the artists. The CD package was broken.....Other than that, it was fun to play it as the children in my art class painted their own version of"Boogie Woogie Broadway" by Mondrian.Art Specialist --- Las Vegas, Nevada
Example Output: Positive

Example Input: Unlike the first Foundation book, which was a series of related but not inter-connected stories, Foundation and Empire has two longer stories. This lets Asimov flesh out the stories more, adding detail and plot intricacies. The first story, The Big and The Little, is not one of the series' strongest. However, the second story, The Mule, is the masterpiece of the series. It tells of a muntant, The Mule, who falls outside the scope of Hari Seldon's psychohistory as one supremely powerful individual. The story is told in almost detective story fashion similar to the first two Robot novels. It's quite as suspenseful and involving as Asimov at his best and one of his utmost classics. There's quite a lot of plot tangling and twists, and the ending is a shocker. It's not quite a cliffhanger but will definitely make you want to read the next book, which is great also. The whole series comes highly recommended.
Example Output:
Positive