[Lillian] took her younger sister [Theresa] to the carnival last weekend. [Lillian] was mad at her brother [Wayne], because [Wayne] had called her fat.
('Theresa', 'Wayne')
[Lillian] took her younger sister [Theresa] to the carnival last weekend. [Lillian] was mad at her brother [Wayne], because [Wayne] had called her fat.
[{('Theresa', 'brother', 'Wayne'): [('Theresa', 'sister', 'Lillian'), ('Lillian', 'brother', 'Wayne')]}]
['sister', 'brother']