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

Ex Input:
Yes, all the reviews are correct: This is an excellent writer detailing some of the most gruesome killings of all time. It is the fastest 650 pages you will ever read, I gaurantee it.One note: This book might also be called "Vincent Bugliosi: The Man Who Brought Down Charles Manson And Lived to Tell About It." That is to say, Bugliosi is evidently proud (rightfully so) of his accomplishment as the lead prosecutor on the case. And he pretty much makes mincemeat out the intellect of the LAPD and the defense attorneys involved. But like any good prosecutor (and Bugliosi is most certainly that) he has quite a bit of evidence to back his charges of ineptitude. If I were Kanarek, or a Tate detective, I'd be pretty embarrassed knowing this book is an all-time bestseller.But who are we kidding, this is the definitive book on Tate-Labianca. A truly fantastic read.

Ex Output:
Positive


Ex Input:
Product was defective from day on and lasted a whole 32 days and now will inflate but by the middle of the night you sleeping on the carpet.

Ex Output:
Negative


Ex Input:
This is a great CD, especially if you like Bluegrass music and Dolly Parton. What a fantastic combination!

Ex Output:

Positive