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 found this book to be an honest look at the world of hockey goaltending from mites to the pros. My son, who is a youth hockey goalie, enjoyed reading Robb's history and hockey philosophy. A good book for all hockey goalie parents, especially those who are new to the goalie world.

A: Positive
****
Q: I ordered according to the size chart for my measurements and it was way to small!! Very uncomfortable.I returned it,

A:
Negative
****