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

Ex Input:
Una excelente guia para todos aquellos que deseen concer mas aobre el vino y su mundo. De forma amena y sencilla explica los principales conceptos y orienta sobre temas basicos como la eleccion del vino corecto, principales tipos de vino, como comprar vino en restaurantes o tiendas, etc.

Ex Output:
Positive

Ex Input:
I did not really care for this book. I found the plot messy and muddled, with many clumsy devices and scenes that felt forced (the climax, in particular, seemed very rushed, cinematically speaking). The characters, for the most part, were thin - and perhaps the author reached too far in casting the reference-net. I wanted to like it (I very much enjoyed Alan Moore's tales of the Extraordinary Gentlemen's League)... A very intriguing idea though (I give the acorn a golden prize but the oak grew sickly)... Maybe it is your thing; it was not mine.

Ex Output:
Negative

Ex Input:
Great entertainment. The 3rd Tranformers is not as good as the first, but MUCH better than the 2nd. My family enjoyed very much. Equally action-packed.

Ex Output:
Positive