[Travis] and his brother [Tony] wanted to go to the arcade. [Tony] asked his mother, [Theresa], if they could, and she said yes.
('Travis', 'Theresa')
[Travis] and his brother [Tony] wanted to go to the arcade. [Tony] asked his mother, [Theresa], if they could, and she said yes.
[{('Travis', 'mother', 'Theresa'): [('Travis', 'brother', 'Tony'), ('Tony', 'mother', 'Theresa')]}]
['brother', 'mother']