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

[EX Q]: 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 A]: Negative

[EX Q]: I enjoy this book very much. It is a timely classic with which I am happy to now have my own copy.
[EX A]: Positive

[EX Q]: One of these 26 songs played as background music on a YouTube video of some kind of gymnastic or dance feat out of Russia. I hunted down the melody, read the English lyrics, then decided to see what else was in the album. Downloaded the full album for $15 via Amazon mp3 downloader, and now happily listen to the melodies (interspersed) on my iPod.
[EX A]:
Positive