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

Example Input: The plot develops nicely then ends abruptly with an unsatisfying ending. It seems to the reader as if the author had reached her contractual page limit and slapped an ending onto the book. A superhuman villian was terminated too easily. The method of capture was not adequately developed. Several promising themes were not followed up by the author, especially the entriquing possibility that through genetic testing Gault's uncle may have been his father or the reason for the military being interested in the investigation. The author took one of the least interesting possibilites and handled it in a below average formulaic manner
Example Output: Negative

Example Input: I didn't like some of the plot twist, of a former leader of the Autobots but other than that it was pretty good.
Example Output: Positive

Example Input: Although Jax presents the gluten free lifestyle with a great attitude, anyone serious about the diet knows that it isn't this easy. The hard info that Jax gives in this book is outright wrong and could be very dangerous to some one new to the diet. She needs to loose the casual approach and get real about being truly gluten free.
Example Output:
Negative