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 TOY WAS OUR GRANDSON'S FAVORITE, SO I JUST HAD TO FIND IT AGAIN FOR OUR NEWEST GRANDCHILD. THANK GOODNESS FOR ONLINE SHOPPING.

Ex Output:
Positive


Ex Input:
Not sure why there's such a love-fest here over this charger?? Fact is, we're talking about roughly eight bucks in parts & plastic that Canon is marking up too much. After spending so much on the camera, it's insulting to the notion of "customer service" that they are charging this price for a replacement charger. At least they could make it a rapid-charger enhancement or something - after all, why should it take two hours to re-charge your camera?Listen Canon, if you want five-stars from customers, treat us better, and sell replacement parts at cost. No need to take advantage of us just because we lose a part that makes our wonderful camera as useful as a stone.

Ex Output:

Negative