BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20120406T180000
DTEND:20120406T203000
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140525;BYDAY=1FR
SUMMARY:First Friday Samplers
END:VEVENT
END:VCALENDAR