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

[EX Q]: The lady is kinda annoying. But the videos made me feel prepared and made me feel comfortable with my decision to not go to any formal classes, these were more than enough.
[EX A]: Positive

[EX Q]: 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 A]: Positive

[EX Q]: I had to exchange the size but the small is still _really small_. It gives me a nice shape but I should probably be wearing a medium. I am a size 6 with a belly left over from a 25 pound weight loss. It's tedious to put on and I'm exhausted when I finally get that last hook hooked! There has to be an easier way! The back support you get is awesome but sitting in it can get uncomfortable after a while. I recommend wearing it over a light weight tank of some kind. The material used irritated my skin a little bit and it made me sweat a little. Should you buy it? If you are tolerant of the ins and outs, then go for it. It was inexpensive.
[EX A]:
Positive