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

[EX Q]: The title of this video mentions Argentine Tango. Unfortunately, what is being taught on this tape is not authentic Argentine Tango. Not even close. It's ballroom tango. There is a huge difference: in music, style, steps, posture, etc... Don't be fooled by ballroom instructors trying to teach Argentine Tango. The only authentic instruction available on the market comes from authentic Argentine instructors from Buenos Aires.
[EX A]: Negative

[EX Q]: My daughter loves her blocks. She will get them all out and look at each one until she finds her favorite. She likes to shake them and see what each one does. These are cute little blocks that have hours of imaginative playtime inside. They also have blunt corners, so no sharp edges like wood blocks for the safety of smaller children. The fact that they have the letters of the alphabet and a corresponding object inside makes them a great learning tool even for older tots. We have really enjoyed these and recommend them to our friends.
[EX A]: Positive

[EX Q]: I'm glad I didn't go out and buy this movie. Thankfully, I just rented it. It starts out moving very slow, which some movies do. However, this movie never "gets going". The plot does not flow well, the actors lines don't always fit in to the scene, the background music does nothing for the movie, & there is a love side story thrown in for good measure. The computer animation of the air battles is the only good thing about this movie. My wife & I both watched it together. We both did not enjoy it. While watching the movie I actually thought about just ending the movie early. My advice, rent it before you buy it!If you want to see good WWI movies, then watch: The Blue Max, Paths Of Glory, The Lost Battalion
[EX A]:
Negative