1. Fill in the parental relationship: fill in the parents' names and relationships first. The father's name and relationship can be filled in as "Zhang San (father)" and the mother's name and relationship can be filled in as "Li Si (mother)".

2. Fill in the relationship between brothers and sisters: you can fill in the names and relationships of brothers and sisters in order of age. The name and relationship of the eldest brother can be written as "Zhang San (Big Brother)", the name and relationship of the second brother can be written as "Zhang Si (Second Brother)" and the name and relationship of the younger sister can be written as "Zhang Wu (Sister)".

3. Fill in the spouse relationship: If you are married, you can fill in the name and relationship of your spouse. The husband's name and relationship can be written as "Wang Wu (husband)" and the wife's name and relationship can be written as "Liu Zhao (wife)".

4. Fill in the child relationship: If you have children, you can fill in the name and relationship in the order of birth. The name and relationship of the eldest son can be written as "Wang Xiaoming (the eldest son)", and the name and relationship of the second daughter can be written as "Wang Xiaoli (the second daughter)".