[Lillian] and her sister [Nancy] are the only children in their family. [Lillian]'s biggest accomplishment is raising her son [Douglas].
('Nancy', 'Douglas')
[Lillian] and her sister [Nancy] are the only children in their family. [Lillian]'s biggest accomplishment is raising her son [Douglas].
[{('Nancy', 'nephew', 'Douglas'): [('Nancy', 'sister', 'Lillian'), ('Lillian', 'son', 'Douglas')]}]
['sister', 'son']