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't:Items' => { 't:CalendarItem' => { ... 't:IsAllDayEvent' => 'false', 't:Start' => '2012-04-26T07:00:00Z' }}
$subject = $response_xml->{'soap:Body'}->{'m:FindItemResponse'}->{'m:R +esponseMessages'}->{'m:FindItemResponseMessage'}->{'m:RootFolder'}->{ +'t:Items'}->{'t:CalendarItem'}->{'t:Subject'} ;