Australian PM hails Queen's 'enormous contribution' in wreath-laying ceremony

The Australian prime minister has praised the Queen for her "enormous contribution" at a wreath-laying ceremony in Canberra. RESTRICTION SUMMARY: NO ACCESS AUSTRALIA, PART NEWS PURPOSES ONLY/VIDEO MAY NOT BE DIGITALLY MANIPULATED PARLIAMENT TV - NO ACCESS AUSTRALIA/NEWS PURPOSES ONLY/VIDEO MAY NOT BE DIGITALLY MANIPULATED