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

Input: Consider Input: The basic premise for this book seems like a great idea for historical (or pre-historical?) fiction. However, it failed to deliver. The entire storyline was so predictable and hackneyed I had to force myself to finish the book. The characters are all one-dimensional and stiff and Auel never really succeeds in bringing them to life. And come on, who really didn't see the ending or the rape scene coming? Auel was obviously trying to create a novel centered around a strong central female character, but she just succeeded in making Ayla looking like an untouchable annoying kid with all the answers. Also, the Neanderthal "mind meld" is one of the most ridiculous things I've ever read. The only reason I give it two stars is because I like the fact that it has a prehistoric setting.

Output: Negative


Input: Consider Input: I bought this air mattress to use while my new bed was being shipped from back east, the bed lost air every night and I woke up almost on the floor. I tried to send it back but it was impossible to get back into the box.

Output: Negative


Input: Consider Input: A wonderful, exciting adventure in the best HD I've seen so far. Whomever said any of these movies was "grainy" didn't watch it on a TV as good as my Mitsubishi Diamond Series.The story was great and endearing, the casting was great, Spiderman was perfect and the HD was breataking.This is what good movies are all about: telling a story, using artistic means to do it, and have a great cast to do it.And, of course, the ending was great too.


Output: Positive