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

Ex Input:
El primer libro del Dr. Weiss sigue siendo un gran libro para todos aquellos a quienes les inquieta el tema de la reencarnacion, asi no crean en ella.

Ex Output:
Positive

Ex Input:
On a number of occasions, it had been suggested that I read this book, and I must say I'm very glad I did. I got very involved, as the writing was so wonderfully descriptive. Having said this, I don't think it was arduous to read all that detail, which sometimes makes reading a book feel a bit of a chore. I would recommend it to anyone!

Ex Output:
Positive

Ex Input:
Well the critics got this one right; Michael Bay was a good director until he got big and lost his perspective. Dirty old man syndrome? Yes, what a joke. I was looking forward to intelligent Sci-Fi and got crap. The reference to Obama in an unreal world was stupid (I came to get away from real world politics). The treatment of the woman in the movie was degrading (glad the other actress bowed out...what a tear down}. It was a shame that the very good actors that came back to do this film had to deal with a totally self-involved director. The animation was excellent but the story was trash. I am soo sorry I spent any money on this film.

Ex Output:
Negative