[Milton]'s dad [Nicholas] is the CEO of the company. [Michael] and his brother [Milton] were rarely seen apart.
('Michael', 'Nicholas')
[Michael] and his brother [Milton] were rarely seen apart. [Milton]'s dad [Nicholas] is the CEO of the company.
[{('Michael', 'father', 'Nicholas'): [('Michael', 'brother', 'Milton'), ('Milton', 'father', 'Nicholas')]}]
['brother', 'father']