[Emily]'s brother [Michael] took her to the fair when she was little. [Michael] also brought his brother [Milton].
('Emily', 'Milton')
[Emily]'s brother [Michael] took her to the fair when she was little. [Michael] also brought his brother [Milton].
[{('Emily', 'brother', 'Milton'): [('Emily', 'brother', 'Michael'), ('Michael', 'brother', 'Milton')]}]
['brother', 'brother']