[Nicholas] was upset at his daughter [Natalia] for staying out so late. [Milton] asked his father [Nicholas] if he could have a video game and he said okay.
('Natalia', 'Milton')
[Nicholas] was upset at his daughter [Natalia] for staying out so late. [Milton] asked his father [Nicholas] if he could have a video game and he said okay.
[{('Natalia', 'brother', 'Milton'): [('Natalia', 'father', 'Nicholas'), ('Nicholas', 'son', 'Milton')]}]
['father', 'son']