[Lillian] and her sister, [Nancy], went to McDonald's. [Ann], [Lillian]'s daughter, came too, and asked if she could get a sundae.
('Nancy', 'Ann')
[Lillian] and her sister, [Nancy], went to McDonald's. [Ann], [Lillian]'s daughter, came too, and asked if she could get a sundae.
[{('Nancy', 'niece', 'Ann'): [('Nancy', 'sister', 'Lillian'), ('Lillian', 'daughter', 'Ann')]}]
['sister', 'daughter']