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

[EX Q]: All the features are nice, TV Guide worked (note that browsing and setting recording preferences is very SLOW), BUT when the TV Guide is downloading (all the time) or you are recording / playing from the hard drive you constantly hear a grinding sound from the hard drive. These guys must have used a cheap hard drive or something. I have the Amazon return slip on my desk......
[EX A]: Negative

[EX Q]: I got this item within a few days of my purchase. It is exactly what I wanted -- I look a whole size smaller, instantly. I tried on the Squeem in a boutique and fell in love, but they were asking almost $200 for it! I highly recommend this item and the seller.
[EX A]: Positive

[EX Q]: Foundation is a classic of the Sci-Fi genre, and that is nearly everything you need to know. If you like Sci-Fi, and are willing to put up with some of it's common shortcomings, this book will appeal greatly to you, for it truly deserves its place in the Sci-Fi canon.
[EX A]:
Positive