[Nancy] and her sister [Amy] played golf together. [Nancy] won easily. [Nancy] dotes on her son [Jacob]. Because of this, [Jacob] is pretty spoiled.
('Amy', 'Jacob')
[Nancy] and her sister [Amy] played golf together. [Nancy] won easily. [Nancy] dotes on her son [Jacob]. Because of this, [Jacob] is pretty spoiled.
[{('Amy', 'nephew', 'Jacob'): [('Amy', 'sister', 'Nancy'), ('Nancy', 'son', 'Jacob')]}]
['sister', 'son']