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

Example Input: "Les Triplettes de Belleville" n'a pas reu le Jutra de la meilleure bande sonore, puisqu'il n'etait pas en nomination. "Gaz Bar Blues" l'a remporte.
Example Output: Positive

Example Input: I have had the charger for more than two years. It charges AA batteries just fine, but has a huge problem securing smaller AAA batteries. To charge the smaller batteries you need to flip down the little button at the positive end. In the beginning one of the four AAA batteries would pop up, and now three out of the four won't hold. The problem is the flip mechanism became loose, and any horizontal pressure would push the buttons back up. What I have to do now is using duct tape and a segment of crayon, apply the crayon on the buttons, and wrap the tape around. You know how painful that is.
Example Output: Negative

Example Input: This is a text book I ordered for my classes for teacher certification. This book is very easy to read, and I am really enjoying it. It presents info and then at the end of a section, recaptures the essence of the reading for you. I would suggest it for any teaching class. I am learning so much from this book. I have been buying all my text books from Amazon because they are so much cheaper, and sometimes I can get free shipping. So far, there has not been a book that I could not find here at Amazon.
Example Output:
Positive