[Wayne] took his daughter [Heidi] to see her grandfather [Clarence] after school yesterday.
('Wayne', 'Clarence')
[Wayne] took his daughter [Heidi] to see her grandfather [Clarence] after school yesterday.
[{('Wayne', 'father', 'Clarence'): [('Wayne', 'daughter', 'Heidi'), ('Heidi', 'grandfather', 'Clarence')]}]
['daughter', 'grandfather']