[Clarence] told stories to his grandson [Dennis]. [Dennis] and his sister [Jennifer] went to the movies to watch the newest superhero flick.
('Clarence', 'Jennifer')
[Clarence] told stories to his grandson [Dennis]. [Dennis] and his sister [Jennifer] went to the movies to watch the newest superhero flick.
[{('Clarence', 'granddaughter', 'Jennifer'): [('Clarence', 'grandson', 'Dennis'), ('Dennis', 'sister', 'Jennifer')]}]
['grandson', 'sister']