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

Ex Input:
I received my new Rhomba, and was all excited to open it and try it out. I open it and go through the quick setup guide and plug it into a USB port on my pc so it can charge up. As I am waiting for the unit to charge I start reading through the manual and come across the following message... The cables that come with this unit contain LEAD which has been shown to cause CANCER and it is strongly suggested that you wash your hands after every time you touch them....Say What???!!!! I fired off an email to Creative asking them to provide a little more clarity on this statement with no response. Needless to say I am returning the unit.

Ex Output:
Negative

Ex Input:
Great. Gives you a pause to remember the real meaning of Christmas. Nostalgic and well loved. Without the glitz and flash of so much that modern Christmas has become. Simple and straight forward, young to old can enjoy it.

Ex Output:
Positive

Ex Input:
I really liked this book, I have always been interested in early man, and I think this book sheds new light on the way it could of been back then. I found this book facinating, and I think that it was a wonderful experence.Although she didn't have any facts she still did a good job of filling in those empty spaces.

Ex Output:
Positive