[Travis] asked his mother [Theresa] to read to him. [Theresa] was too busy. [Nancy] called [Theresa], her sister, to see if she wanted to go out to eat.
('Travis', 'Nancy')
[Travis] asked his mother [Theresa] to read to him. [Theresa] was too busy. [Nancy] called [Theresa], her sister, to see if she wanted to go out to eat.
[{('Travis', 'aunt', 'Nancy'): [('Travis', 'mother', 'Theresa'), ('Theresa', 'sister', 'Nancy')]}]
['mother', 'sister']