[Charlotte] was n't sure what to buy her brother [Travis] for his birthday. She decided to ask her mother, [Theresa], for some advice.
('Travis', 'Theresa')
[Charlotte] was n't sure what to buy her brother [Travis] for his birthday. She decided to ask her mother, [Theresa], for some advice.
[{('Travis', 'mother', 'Theresa'): [('Travis', 'sister', 'Charlotte'), ('Charlotte', 'mother', 'Theresa')]}]
['sister', 'mother']