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

Ex Input:
I bought two sets of these. They're priced at $9.50. But, when they arrived, the price tag still stuck on the item says $2.99. Nice way to hide your "shippign cost" ($6.51) from your customers! This company goes on my "Never Again" list!

Ex Output:
Negative


Ex Input:
This book is a very informative, yet easy read about the realities of life and how patterns are repeated sometimes even unknowingly until honestly addressed and changed. That is where the power of this book lies in giving insight, tools, all with a touch of humor to make positive changes of direction in our lives. Highly recommend.

Ex Output:
Positive


Ex Input:
This video is fine for ballroom dancers, but it has nothing to do with the authentic Argentine Tango. Even ballroom dancing has now a separate category for Argentine Tango. Unfortunately, this video is not that. That's why, I rate it at 1.

Ex Output:

Negative