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

Ex Input:
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 Output:
Positive


Ex Input:
These are only meant for use as temporary or guest bedding, but I've been in a situation where I am using this item daily as my bed for over a month now. I am a large person. It has held up beautifully. I add air maybe once every 7-10 days. The flocked top is great, holding sheets in place. It is so comfortable, my back and general body pain has improved dramatically since using it! I suspect that when my permanent bed arrives, this little bed will serve long and well as guest bedding.

Ex Output:
Positive


Ex Input:
This book is not only about the theory of enterprise risk management, but also a summary of the author¡s experience in practicing risk management for more than twenty years. And what is more, there are several case studies that are deeply analyzed in the book. It is because of this that I think it is an excellent work on enterprise risk management. In addition, it is interesting that the Balance of the Yin and Yang in the Chinese traditional philosophy is applied as Lesson 7 by the author. It is a must read for all business managers and students who want to pursue a career in risk management.

Ex Output:

Positive