What is the relationship between grandma and granddaughter?

Fill in the relationship between grandparents and grandchildren. Because grandma is also called grandma, the relationship between grandparents and grandchildren refers to the relationship between grandparents and grandchildren, so the relationship between grandma and granddaughter is filled in. There are three main contents in the relationship between grandparents and grandchildren: first, the grandparents who have the ability to afford have the obligation to support the minor grandchildren whose parents have died; Second, grandchildren who can afford it have the obligation to support their grandparents whose children have died.