How does Xia Hai define its members?

How does Ni define each member as follows: Illustration Ni Yangzhai:

1, the definition of the second daughter: there is an unmarried sister in the room named your sister. Unmarried, my sister is unmarried. When your sister gets married, there will be no fire in your life and you will become a small animal.

2, mother definition: there are children in the room calling your mother! Married women are called wives and children are called mothers. Wives and mothers are different. For example, some people are mothers who have children out of wedlock, while others are divorced.

3 definition of dad: there are children in the room who call you dad! . Do you call a child without a wife dad? )。

4. eldest daughter definition: the first unmarried daughter born.

5. Definition of eldest son: the first unmarried man born.

6. Definition of the second son: I am unmarried and my brother is unmarried.

7. Definition of the third son: I am unmarried and my two brothers are unmarried.