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

[Q]: 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.
[A]: Positive

[Q]: My 3 year old granddaughter loved this puzzle. It is very colorful I would definitely recommend this puzzle. It is very well constructed.
[A]: Positive

[Q]: i was very excited when I saw the ad. I planned to buy a few of macro lenses, but ...the macro lens works only for the 1/4 inch distance :-(I cannot scan a business card or an article in a newspaper, but only a few charactersI really need a macro lens but for a few inches distance
[A]:
Negative