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

[EX Q]: The lady is kinda annoying. But the videos made me feel prepared and made me feel comfortable with my decision to not go to any formal classes, these were more than enough.
[EX A]: Positive

[EX Q]: Ordered two and tested them out: one had a bad pump but the return was easy.These airbeds are super cheap and great. Everyone who has slept on them says they are extremely comfortable. They hold the air well. I recommend them very highly
[EX A]: Positive

[EX Q]: IVE HAD TO SEND TWO OF THESE BACK NOW. THEY SHUT OFF AND WONT TURN BACK ON. THESE ARE DISCOUNTINUED AND I BELEIVE THE BATTERIES ARE SHOT IN THEM.I WOULDNT BUY ONE!!
[EX A]:
Negative