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]: Naader was my first yoga teacher. When we moved out of state, this video was my link to the best yoga routine I have ever done. I tried other instructors and other videos, but Naader's approach is the best -- a balanced mix of yoga instruction and inspiration. I have shared this tape with many friends (who then bought their own copy!) and they all agree that Naader's instructions are easy to follow and the pace is slow enough that beginners can figure out what is going on before the next pose; but not so slow that experienced students get bored. Furthermore, since he is doing the poses along with the student, he knows just when to offer that extra word of encouragement when you are about to give up! I find something new to ponder each time I listen to this tape. Naader's words are from the heart and they reach out to touch your heart as well as your body. Buy this tape and use it!!
[EX A]: Positive

[EX Q]: This DVD does not play well at all. I wish I would have purchased this elsewhere. The price for this should have been much less to equal the quality.
[EX A]:
Negative