Champion Japan's Nao Kodaira (C), second-placed South Korea's Lee Sang-Hwa (L) and third-placed Karolina Erbanova of the Czech Republic pose for photos during medal ceremony of ladies' 500m final of speed skating at the 2018 PyeongChang Winter Olympic Games at Medal Plaza, PyeongChang, South Korea, Feb. 20, 2018. (Xinhua/Wu Zhuang)