[Lillian] likes taking her son [Jerry] to school. [Jerry]'s grandfather, [Clarence], was a world war II veteran.
('Lillian', 'Clarence')
[Lillian] likes taking her son [Jerry] to school. [Jerry]'s grandfather, [Clarence], was a world war II veteran.
[{('Lillian', 'father', 'Clarence'): [('Lillian', 'son', 'Jerry'), ('Jerry', 'grandfather', 'Clarence')]}]
['son', 'grandfather']