[Heidi] does n't like having to babysit her younger brother, [Kevin]. [Nancy]'s daughter, [Heidi], asked her mom to read her a story.
('Nancy', 'Kevin')
[Nancy]'s daughter, [Heidi], asked her mom to read her a story. [Heidi] does n't like having to babysit her younger brother, [Kevin].
[{('Nancy', 'son', 'Kevin'): [('Nancy', 'daughter', 'Heidi'), ('Heidi', 'brother', 'Kevin')]}]
['daughter', 'brother']