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

[EX Q]: this c.d. is off the hook. it blew the sets up down here. everybody need to quit hatin cuz you don't know what's up hot boys can flow and they be tearin up the charts
[EX A]: Positive

[EX Q]: I have always had trouble finding the perfect toner for my skin type. I have oily skin but it is also extremely sensitve to burning and tingly toners that contain alcohol in the ingredients. I have tried a lot of toners, and this is truly one of the best ones I have ever used IMO. It is very gentle and does not produce a burning or tingly sensation after application. It has a great, light, clean scent and does an effective job of wiping away any remaining oils/dirt on your face. I like to use it after cleansing and prior to any day/night moisturizers.
[EX A]: Positive

[EX Q]: This is the wonderfully engaging tale of how Bugliosi successfully prosecuted the Manson Family for the August 1969 murders. However, if you wish to learn a lot about the backgrounds of the "family" members, this is not the book for you. This book is from a law-enforcement point of view. If you pick up this book hoping to learn about Manson and his philosophy, you'll be disappointed. However, if you want to know how the players were implicated and prosecuted, there's no better book.
[EX A]:
Positive