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

[EX Q]: Considering how much bad music is out there these days, this was nice to come across. Covers a wide range of topics and moods, musicianship is pretty good. I'd recommend it to just about anyone. My tastes are usually heavier and more progressive - Rush, Dream Theater, Iron Maiden, Queensryche. But I like this disc too.
[EX A]: Positive

[EX Q]: El primer libro del Dr. Weiss sigue siendo un gran libro para todos aquellos a quienes les inquieta el tema de la reencarnación, así no crean en ella.
[EX A]: Positive

[EX Q]: I read "Trouble on Titan" around 1970, when the Apollo program was at its apex, and the human exploration of the Solar System seemed only a short step away. My review is based on old memories, but I can still remember a mining colony on Titan and jet craft using oxygen for fuel and burning Titan's methane atmosphere. We've learned much since this book was written, and Titan's atmosphere has less methane than we originally thought. However, this book was well written, and I am sure will intrigue my son as much as it intrigued his father, who is now working at NASA on the Cassini/Huygens mission to Saturn and Titan. This book has that old-style sci-fi flavor that made another world seem more like reality than fantasy. I think if you enjoyed the Lucky Starr and David Starr stories by Asimov, you will enjoy "Trouble on Titan."
[EX A]:
Positive