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

Q: Needed place for kids to sleep while visiting grandma and now they argue over who gets to sleep on the air mattress. Both think it's more comfy than their bed at home.Would have given 5 stars, but the bag it comes with to put it in is worthless, no chance of ever getting it in there again.

A: Positive
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Q: I guess I didn't find this CD memorable, as I couldn't even remember what it sounded like. There were no particular pieces that jumped out at me and cried "Dance to me." Overall I was not that impressed.

A: Negative
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Q: I was most struck with the information about what happens to us physically when we watch television. The very act of watching itself, without reference to content, changes the way our brains operate. I recommend this to all teachers, parents, and broadcast journalists.

A:
Positive
****