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

Ex Input:
The Sansa View 8GB I received was faulty. The battery would not hold a charge and/or the player would not turn on. This happened within hours of opening the player packaging and attempting an initial full-charge of the player's battery. The battery is only chargeable via USB and I tried using a PC and an AC to USB adapter to charge it. There is no hard reset button like I have seen on other players (namely Cowon brand players) so it could not simply be reset.I decided to return the product for a refund because it did not seem worth the trouble of waiting for a new (or repaired) player. I was not very impressed with the build quality of the player. It felt and looked very prone to scratching or other damage if not treated with extreme care. Furthermore, I found another player that suited my personal needs and desires better than the Sansa View.

Ex Output:
Negative


Ex Input:
This one doesn't really fall into the Western category, but it's full of hammering action, informative local California history, and mystic goings-on. Seacoast adventures, early Califronia ranching, great good-guys and really bad bad-guys, and mysterious appearances by silent, unknown characters fill this one to the brim! Best of all, L'Amour introduces in this story, for what I believe was the first time in his writings, the famous "portal to the other side," which really sets this story apart from almost all of his other works. Excellent yarn through and through. You won't forget it for a long time after you first read it!

Ex Output:
Positive


Ex Input:
Excellent book. I've read all but a few pages. I was very touched by Mr Bok's description of his childhood as a slave. A few years ago I'd heard that the Sudan had some problems; after reading this book I have a little idea of those problems in general and of slavery in particular. I strongly recommend this book.

Ex Output:

Positive