[Lillian] gets along with her brother [Nicholas] better than her sister [Theresa].
('Nicholas', 'Theresa')
[Lillian] gets along with her brother [Nicholas] better than her sister [Theresa].
[{('Nicholas', 'sister', 'Theresa'): [('Nicholas', 'sister', 'Lillian'), ('Lillian', 'sister', 'Theresa')]}]
['sister', 'sister']