Artists perform during the "Papua New Guinea Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, Sept. 16, 2019. The expo held its "Papua New Guinea Day" event on Monday. (Photo by Zhao Yuelai/Xinhua)

　　Artists perform during the "Papua New Guinea Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, Sept. 16, 2019. The expo held its "Papua New Guinea Day" event on Monday. (Photo by Zhao Yuelai/Xinhua)

　　Artists perform during the "Papua New Guinea Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, Sept. 16, 2019. The expo held its "Papua New Guinea Day" event on Monday. (Photo by Zhao Yuelai/Xinhua)

　　Artists perform during the "Papua New Guinea Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, Sept. 16, 2019. The expo held its "Papua New Guinea Day" event on Monday. (Photo by Zhao Yuelai/Xinhua)