Wang Mingze and her painting she presented to the railway policemen. [Photo by Xu Shiqiu]

On February 18, a 49-second video from CCTV.com reported an 8-year-old girl on the train paying tribute to the railway policemen of Wuchang, Hubei Province and heartwarming moments of several railway policemen lining up to salute back.

This girl, named Wang Mingze, is studying in Grade 2 of Dabu Primary School in Sanxiang town, Zhongshan city. She likes painting.

"On February 14, when the train I took setting out from Harbin stopped in Wuhan, from the window I saw many policemen carrying materials. They were working very hard, so I present the crayon drawing I had made a few days ago from the window to cheer them on. They all saluted me back," Wang Mingze recalled.

The picture is painted with the words "Fight on, China! Fight on, Wuhan!" and "Unit as one in the fight against the epidemic". The main part of the picture shows a group of medical workers wearing protective clothing and masks fighting against the virus. Behind them is the beautiful homeland.

"What Wang Mingze did was a coincidence, but she couldn't help doing it, which was a result of moral education that she received," explained Jian Yan, principal of Dabu Primary School.