[Heidi] asked her mom, [Nancy], to watch the dog while she was away. [Heidi]'s brother, [Jacob], did it because he is better with dogs.
('Nancy', 'Jacob')
[Heidi] asked her mom, [Nancy], to watch the dog while she was away. [Heidi]'s brother, [Jacob], did it because he is better with dogs.
[{('Nancy', 'son', 'Jacob'): [('Nancy', 'daughter', 'Heidi'), ('Heidi', 'brother', 'Jacob')]}]
['daughter', 'brother']