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

Ex Input:
I was surprised to see that the item was used. Advertised as new. Would have liked the new ones stead got used.

Ex Output:
Negative

Ex Input:
This book has solved the problems we had while trying to manage my son's diabetes.You can find all answers in diabetes management.

Ex Output:
Positive

Ex Input:
This product is the the first Mp3 Player that I bought and it has turned me off from buying anything from creative again. As others have mentioned the headphone jack breaks quite easily, but not from rough use, it just breaks down. I barely had this thing a month before it started giving problems, and I only used it to go from home to work. This I guess is why people flock to the Ipod, cause you may not be able to replace the battery but it is damn sturdy. This is just a piece of junk

Ex Output:
Negative