[Theresa] and her sister [Amy] went shopping at the mall. [Theresa]'s daughter [June] stayed home to study.
('Amy', 'June')
[Theresa] and her sister [Amy] went shopping at the mall. [Theresa]'s daughter [June] stayed home to study.
[{('Amy', 'niece', 'June'): [('Amy', 'sister', 'Theresa'), ('Theresa', 'daughter', 'June')]}]
['sister', 'daughter']