Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

Ex Input:
This product is not worth buying. I bought 2 as Christmas gifts directly from the company. 1 doesn't work properly and the other is just junky. I tried to return the product but they are unwilling to take it back. Waste of your money!

Ex Output:
Negative Review

Ex Input:
This kindle is amazing! I bought it for my wife for Christmas. She loves it! It works as advertised. It is easy to use. Instructions are easy to follow. Start up was fast and easy. It is a great product with plenty storage. My wife loves the many available apps and software and books.

Ex Output:
Positive Review

Ex Input:
Could not get this item to work on my new computer. purchased a different one at walmart and it works great.

Ex Output:
Negative Review