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

[EX Q]: This video is fine for ballroom dancers, but it has nothing to do with the authentic Argentine Tango. Even ballroom dancing has now a separate category for Argentine Tango. Unfortunately, this video is not that. That's why, I rate it at 1.
[EX A]: Negative

[EX Q]: The cable works great. I have been uploading Digital8 video to my processor for editing projects with no problems. The cord could be a bit longer than its 1.5 meters but that's not a major concern. It was a bit pricey, but the steep markup on cords is pretty common across the board. All in all a good purchase.
[EX A]: Positive

[EX Q]: I first read the Martian Chronicles as a teenager. They are in fact the only sci-fi I've ever read. What I want to know is why George Lucas or Steven Spielberg havn't made movies of them? With their abilities in the sci-fi world they could do a great job with them.
[EX A]:
Positive