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

Ex Input:
Great book for people that need to write email. It would be nice to review the grammar rule's from time to time.

Ex Output:
Positive


Ex Input:
I purchased 2 of this item as Christmas gifts for 2 of my grandsons. They have both watched it more than once and have thoroughly enjoyed it. I did not have any problems with my order. It was received in a timely manner, and in the condition promised.

Ex Output:
Positive


Ex Input:
I may not a good reviewer because I stopped reading at page 50 but I believe this is not at all a good book to read if you want to learn about Japanese culture. As a Japanese born and raised in Japan I find this book extremely humiliating.

Ex Output:

Negative