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 reencarnación, así no crean en ella.

Ex Output:
Positive


Ex Input:
It does an excellent job on mildewed wood such as decks and deck furniture without using chemical mode which is the only weak link in an otherwise strong chain. Unfortunately, the only effective chemical solution is chlorine which acts more or less on its own but cannot be used with this machine. Safe cleaners, such as Simple Green are no more effective than when used without them. Other than that, it's a great product.

Ex Output:
Positive


Ex Input:
This is not a children's toy, obviously. It does, however, make a great gift with a nice bottle of wine to any puzzle-loving adult in your life. I bought it for my sister who found it a bit of a challenge to get the bottle out, but liked that she wasn't able to solve it easily either. It provided just enough challenge, then we enjoyed the newly freed wine. She has it displayed by her wine area and everyone needs to try it out when they come over for dinner. A good conversation piece!

Ex Output:

Positive