Did the 9-year-old three brothers and sisters find their mother? Why?

We have the results. The 9-year-old three brothers and sisters have found their biological mothers. Five years ago, the mothers of the three brothers and sisters went back to their hometown in Sichuan to visit their children's grandmothers, never to return. The elder sister took on the responsibility of being a mother, got up at 5: 30 to cook and took care of her two younger brothers. Nine-year-old brother and sister searched thousands of miles for their mother and finally found it. This is crazy.