[Mary] went with her father [Nicholas] and her grandfather [Clarence] to the park to fly some kites.
('Nicholas', 'Clarence')
[Mary] went with her father [Nicholas] and her grandfather [Clarence] to the park to fly some kites.
[{('Nicholas', 'father', 'Clarence'): [('Nicholas', 'daughter', 'Mary'), ('Mary', 'grandfather', 'Clarence')]}]
['daughter', 'grandfather']