[Stephanie] and her son [Michael] went to the zoo with [Stephanie]'s brother [John].
('John', 'Michael')
[Stephanie] and her son [Michael] went to the zoo with [Stephanie]'s brother [John].
[{('John', 'nephew', 'Michael'): [('John', 'sister', 'Stephanie'), ('Stephanie', 'son', 'Michael')]}]