[Lillian] needed to go to the store. [Lillian] asked her sister [Theresa] for a ride. [Nancy] and her sister [Lillian] were fighting. They never fight long though, and they made up the next day.
('Theresa', 'Nancy')
[Lillian] needed to go to the store. [Lillian] asked her sister [Theresa] for a ride. [Nancy] and her sister [Lillian] were fighting. They never fight long though, and they made up the next day.
[{('Theresa', 'sister', 'Nancy'): [('Theresa', 'sister', 'Lillian'), ('Lillian', 'sister', 'Nancy')]}]
['sister', 'sister']