Assertion: typhoon | /r/CapableOf | undergo rapid intensification
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Source sentences:
text: On the August 29, the JMA upgraded the storm to a typhoon, after it developed an eye with a central dense overcast, and underwent rapid intensification.
text: The typhoon underwent rapid intensification Sept. 11-12, which means maximum sustained winds increased by at least 30 knots (about 35 mph) in 24 hours or less.