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

Ex Input:
All the elements of a great movie. What can I say, I love to study the elements of war, and I enjoy a good love story along the way. This movie was a great introduction to the role airplanes had in the first World War. Featuring the story of the Lafayette Escadrille, and the role Americans had in the early aerial engagements. The story also allows those who have little knowledge about early technology to understand that it was very rudimentary. (Using hammers to clear your machine gun comes to mind.) The soundtrack was very well done, and the needed animation(?) was excellent as well. I highly recommend this movie.

Ex Output:
Positive


Ex Input:
This thing is awful. Prints magenta only. Drives me crazy. I am going to go find a high building to throw it from.

Ex Output:
Negative


Ex Input:
In 2081, a new kind of telescope, using subtle quantum effects, allows for a detailed examination of all the planets of the galaxy and abroad. Life is present everywhere, but not civilization. Subtle evidences show that civilizations are numerous, but that they disappeared... Where? What is our own enthralling future?This book is anticipation in the Jules Vernes style: bold but realistic prospects with nowaday 2000' science, some scientific popularization, without forgetting warm-hearted characters in an optimistic vision of life.Richard Trigaux, author.

Ex Output:

Positive