Need to set up an Entity Person that has a to-many relationship to itself (reflexive).
So each Person can have n sub person, basicly this:

Does Person have two Relationships, person and sub_person? How does the inverse rule work?
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If I understand your requirement correctly, you have to define only one entity Person, and two relationships:
sub_personsas to-many relationship from Person to Person,super_personas to-one relationship from Person to Person,and define these as inverse relationships of each other.