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

Ex Input:
Works fine on the PowerBook G4. Doesn't have an LED to tell you it's on and, of course, doesn't have a smart plug to show charging status.

Ex Output:
Positive

Ex Input:
Great tunes dripping with latin up beat melodies and smooth syncopation. One track could have easily appeared in a 007 flick.Slick production and sound makes for great party music ; dancing or sitting ! "Oh yeah" will always turn an ear with or without the accompaning movie.......

Ex Output:
Positive

Ex Input:
This is the first in a series of very good books following the life of a prehistoric woman. She uses creativity intelligence to live in a difficult environment.

Ex Output:
Positive