[Tony] went to the park with his father, [Dale]. [Charlotte] asked her father [Dale] if she could spend the night with a friend and he said okay.
('Tony', 'Charlotte')
[Tony] went to the park with his father, [Dale]. [Charlotte] asked her father [Dale] if she could spend the night with a friend and he said okay.
[{('Tony', 'sister', 'Charlotte'): [('Tony', 'father', 'Dale'), ('Dale', 'daughter', 'Charlotte')]}]
['father', 'daughter']