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Turkish children hold national flags in front of Ataturk Mausoleum to celebrate the 99th National Sovereignty and Children's Day in Ankara, Turkey, April 23, 2019. (Xinhua/Mustafa Kaya)
Turkish children hold national flags in front of Ataturk Mausoleum to celebrate the 99th National Sovereignty and Children's Day in Ankara, Turkey, April 23, 2019. (Xinhua/Mustafa Kaya)