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

Ex Input:
This book is not for everyone. It is extremely scary and disturbing. At the same time, it is a fascinating look at the police work and prosecution that brought the murderous Manson Family to justice. The book is hard to put down; the in depth discussion on presenting a criminal case in court and developing evidence to support the case is outstanding. The main complaint is that the book is a few hundred pages too long. The author seems a little too self-promoting, but then again he did get a prosecution on one of the biggest murders in history.

Ex Output:
Positive


Ex Input:
El primer libro del Dr. Weiss sigue siendo un gran libro para todos aquellos a quienes les inquieta el tema de la reencarnación, así no crean en ella.

Ex Output:
Positive


Ex Input:
Very comprehensive, can get you up and running in 48 hours. A very thin book that contains the bare essentials as to familiarize yourself with MIDI and the initial steps to set up a working compilation of MIDI products. Explains concepts such as sequencers, samplers, MIDI-IN/OUT/THRU and countless more... the good part is that even though it holds great amounts of information, the book is orgenized in a way that is easily referenced in the future. It's easy... it's wonderful.

Ex Output:

Positive