[Theresa]'s sister, [Lillian], recently started acting. [Theresa] was playing in the sandbox with her brother [Wayne].
('Lillian', 'Wayne')
[Theresa]'s sister, [Lillian], recently started acting. [Theresa] was playing in the sandbox with her brother [Wayne].
[{('Lillian', 'brother', 'Wayne'): [('Lillian', 'sister', 'Theresa'), ('Theresa', 'brother', 'Wayne')]}]
['sister', 'brother']