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

Had the bed two weeks and so far not a problem. I did not inflate it to the maximum pressure-I'm 250lbs the maximum load being 300lbs-but rather 3/4 full of air. I have added air only one time-maybe 10 seconds. I sleep on this airbed every night. There is a tendancy for me to roll to the side of the bed-whether that's just me or the bed is yet to be seen. To add to this review I had the bed for three months-the pump went out after that time. I suppose we take our chances.MalcolmL
Output:
Negative