[Nancy] took her younger sister [Theresa] to the carnival last weekend. [Nancy] is married to Thomas and when she was 24, the couple welcomed [Heidi] into the world.
('Theresa', 'Heidi')
[Nancy] took her younger sister [Theresa] to the carnival last weekend. [Nancy] is married to Thomas and when she was 24, the couple welcomed [Heidi] into the world.
[{('Theresa', 'niece', 'Heidi'): [('Theresa', 'sister', 'Nancy'), ('Nancy', 'daughter', 'Heidi')]}]
['sister', 'daughter']