[Lillian]'s car had a flat tire and she called her daughter, [Andrea], for help. [Andrea] sent her husband, [John], to change the flat tire.
('Lillian', 'John')
[Lillian]'s car had a flat tire and she called her daughter, [Andrea], for help. [Andrea] sent her husband, [John], to change the flat tire.
[{('Lillian', 'son-in-law', 'John'): [('Lillian', 'daughter', 'Andrea'), ('Andrea', 'husband', 'John')]}]
['daughter', 'husband']