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

Ex Input:
I just got these stockings but the seller sent me a way smaller size (A-B) than I ordered, I e-mailed them telling them about the problem and will keep you dear buyer posted. I cannot tell you about anything about the quality or color because I have not opened the ones I received.

Ex Output:
Negative


Ex Input:
very interesting book. was one of those you do not want to put down. it gave a different perspective of the happenings of the manson family. however, one must keep in mind it was recorded from what charles manson believed happened. great book.

Ex Output:
Positive


Ex Input:
This book is typical Keel--chock-full of anecdotes, skewed information, speculation, hoaxes (many of Keel's "weird" experiences in the case were jokes perpetrated by Gray Barker)--all presented as factual reporting."Mothman" does not exist. Several writers--most notably Joe Nickell--have thoroughly debunked the incident. But true facts have never stopped Keel.I'm a fan of Keel's writings, but you have to take them with a grain of salt. This is not one of his best efforts, and it rankles me that he positions himself as a serious journalist.

Ex Output:

Negative