Instructions: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: Don't get me wrong, I believe in UFOs and certainly Mothman, since my friend's aunt saw it, but 90% of this "nonfiction" book is nonsense. Keel's semi-acurate listing of the real life mystery of Mothman wins it a single star, but the speculation that he pushes as the gospel truth is laughable, and is mostly based on questionable facts and ideas that are theoretical at best. If you want to know about Mothman read James Cohen's Book of Mysterious Beasts, if you want to waste your time and Amazon's time, buy The Mothman Prophecies.
Output:
Negative