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BEGIN:VEVENT UID:event-1 DTSTAMP:20170130T000000Z CREATED:20170216T155507Z LAST-MODIFIED:20170216T155543Z SEQUENCE:1 DTSTART:20170209T013000Z DTEND:20170209T030000Z SUMMARY:Alarmed DESCRIPTION:Event with alarm CLASS:PUBLIC TRANSP:OPACHE BEGIN:VALARM TRIGGER:-PT30M ACTION:DISPLAY DESCRIPTION:Reminder END:VALARM END:VEVENT