[George] and his sister [Theresa] stood in line at the fair. [George] and his daughter [Andrea] went to Disney World together.
('Theresa', 'Andrea')
[George] and his sister [Theresa] stood in line at the fair. [George] and his daughter [Andrea] went to Disney World together.
[{('Theresa', 'niece', 'Andrea'): [('Theresa', 'brother', 'George'), ('George', 'daughter', 'Andrea')]}]
['brother', 'daughter']