[Clarence] loves watching movies with his daughter. Her name is [Nancy]. [Nancy] is so happy for her son. Her son [Kevin] just joined the Army.
('Kevin', 'Clarence')
[Nancy] is so happy for her son. Her son [Kevin] just joined the Army. [Clarence] loves watching movies with his daughter. Her name is [Nancy].
[{('Kevin', 'grandfather', 'Clarence'): [('Kevin', 'mother', 'Nancy'), ('Nancy', 'father', 'Clarence')]}]
['mother', 'father']