All Implemented Interfaces:
NamedEntity
Direct Known Subclasses:
CorporateBody, Family, Person

public class Agent extends Entity implements NamedEntity
https://books.google.de/books?id=foGBCgAAQBAJ&pg=PA151:

The classes corresponding to the entities person, family and corporate body are subclasses of the Agent class, since these entities share attributes and relationships between them. For instance, intellectual creations may be gathered into a class "Work" and its creators may be gathered into classes like "Person", "Family" and "Corporate body".