[Dale] asked his sister [Nancy] if she could watch his son [Travis] for a few hours while he went to the doctor.
('Travis', 'Nancy')
[Dale] asked his sister [Nancy] if she could watch his son [Travis] for a few hours while he went to the doctor.
[{('Travis', 'aunt', 'Nancy'): [('Travis', 'father', 'Dale'), ('Dale', 'sister', 'Nancy')]}]
['father', 'sister']