[Amy] ate dinner with her daughter [Emily]. [Emily]'s brother [Michael] was running late and made it in time for dessert.
('Amy', 'Michael')
[Amy] ate dinner with her daughter [Emily]. [Emily]'s brother [Michael] was running late and made it in time for dessert.
[{('Amy', 'son', 'Michael'): [('Amy', 'daughter', 'Emily'), ('Emily', 'brother', 'Michael')]}]
['daughter', 'brother']