Artists perform during the "Hunan Day" event at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 7, 2019. The "Hunan Day" event was held at the Beijing International Horticultural Exhibition on Sunday. (Photo by Ren Chao/Xinhua)

People visit the Hunan garden at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 7, 2019. The "Hunan Day" event was held at the Beijing International Horticultural Exhibition on Sunday. (Photo by Ren Chao/Xinhua)

People visit the Hunan garden at the Beijing International Horticultural Exhibition in Beijing, capital of China, July 7, 2019. The "Hunan Day" event was held at the Beijing International Horticultural Exhibition on Sunday. (Photo by Ren Chao/Xinhua)