RELATED-TO:person.1@example.com
RELATED-TO;RELTYPE=PARENT:person.2@example.com
RELATED-TO;SCHOOL=MEETING:person.3@example.com
+RDATE:20160120
+RDATE;VALUE=DATE;TZID=Europe/Truro:20160121
+RDATE;ZILCH=DATA:20160520
END:VJOURNAL
END:VCALENDAR
\ No newline at end of file