[Nancy] took her father [Clarence] to watch a movie together. [Nancy] was honored to take her son [Jacob] to the mother son dance at her son's school last Friday.
('Jacob', 'Clarence')
[Nancy] was honored to take her son [Jacob] to the mother son dance at her son's school last Friday. [Nancy] took her father [Clarence] to watch a movie together.
[{('Jacob', 'grandfather', 'Clarence'): [('Jacob', 'mother', 'Nancy'), ('Nancy', 'father', 'Clarence')]}]
['mother', 'father']