BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//WuP.nu//Agenda 1.0//NL
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:wup-bday-111@wup.nu
DTSTAMP:20261002T143645Z
DTSTART;VALUE=DATE:19820720
RRULE:FREQ=YEARLY
SUMMARY:Verjaardag petra
URL:https://www.wup.nu/agenda
END:VEVENT
END:VCALENDAR