| 11. | It started kind of burping with three or four laps to the end.
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| 12. | In microgravity environments burping is normally associated with regurgitation.
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| 13. | I've also noticed people cover their mouth when yawning and burping.
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| 14. | We have ground water contamination, burping tanks,
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| 15. | "We didn't talk about burping, " he said.
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| 16. | At that moment, several boys in a corner begin an impromptu burping contest.
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| 17. | Hobbes responds to this by saying Calvin spent most of the time burping up.
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| 18. | PROFANITY _ A few vulgarities, a lot of burping, but no real profanity.
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| 19. | And mastering the art of burping is something men can easily turn into a competition.
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| 20. | Burping has redeeming social value, too.
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