this relation name	attribute	optionality	unicities	nature	is primary	adjacent source	outer source	association name	datatype	leg note
Agence	id. agence	!		primary_key	True					
Agence	nom agence			normal_attribute	False					
Direction régionale	id. dir.	!		primary_key	True					
Direction régionale	nom dir.			normal_attribute	False					
Superviser	id. agence	!		primary_foreign_key	True	Agence	Agence	Superviser		
Superviser	id. dir.	!		stopped_foreign_key	False	Direction régionale	Direction régionale	Superviser
