[Jeff] gets to stay with his grandfather, [Clarence] every weekend. [Nancy] loves cooking for her son. His name is [Jeff].
('Nancy', 'Clarence')
[Nancy] loves cooking for her son. His name is [Jeff]. [Jeff] gets to stay with his grandfather, [Clarence] every weekend.
[{('Nancy', 'father', 'Clarence'): [('Nancy', 'son', 'Jeff'), ('Jeff', 'grandfather', 'Clarence')]}]
['son', 'grandfather']