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BEGIN:VEVENT
DTSTART:20120314T180000
DTEND:20120314T190000
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140522;BYDAY=2WE
SUMMARY:Narcotics Anonymous
END:VEVENT
BEGIN:VEVENT
DTSTART:20120328T180000
DTEND:20120328T190000
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140522;BYDAY=4WE
SUMMARY:Narcotics Anonymous
END:VEVENT
END:VCALENDAR