BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//开云体育 Inc//开云体育 Calendar//EN
METHOD:CANCEL
CALSCALE:GREGORIAN
BEGIN:VEVENT
STATUS:CANCELLED
UID:calendar.18544@groups.io
DTSTAMP:20191116T215408Z
ORGANIZER;CN=yancophm@groups.io Group:mailto:yancophm@groups.io
DTSTART:20201129
DTEND:20201130
RRULE:RRULE:FREQ=YEARLY;INTERVAL=1
SUMMARY:Museum Flat Smoke Detector Batteries
SEQUENCE:0
END:VEVENT
END:VCALENDAR