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

[EX Q]: I have a small business and it was important that the envelope feeder work well. From day 1, this has been a nightmare. Components of the printer block the envelopes/labels and they don't feed properly. If you use internet postage, you lose money with the misfed labels/envelopes. I'm very disappointed and am shopping for a new printer now, only a short time after purchasing this one.
[EX A]: Negative

[EX Q]: It is extremely rare to see so many world famous super artists performing together in the same concert doing some of their greatest hits - Elton John, Sting, Mark Knofler, Carl Perkin, Eric Clapton, Paul McCartney, Phil Colins etc. You must own this DVD before it is out of stock. I would have given it 5 stars should the audio recording be slightly better. Go and buy this one with confidence. I am sure you will not regret.
[EX A]: Positive

[EX Q]: The playing is merely competent, and the singing sounds like jump rope chanting much of the time. But there are flashes of inspiration. It's unlikely any of these songs will stay with you after the CD is over, nor will you feel much of a draw to put it on again.
[EX A]:
Negative