[Clarence] is [Milton]'s favorite grandfather. [Michael] took his brother [Milton] out to get drinks after a long work week.
('Michael', 'Clarence')
[Michael] took his brother [Milton] out to get drinks after a long work week. [Clarence] is [Milton]'s favorite grandfather.
[{('Michael', 'grandfather', 'Clarence'): [('Michael', 'brother', 'Milton'), ('Milton', 'grandfather', 'Clarence')]}]
['brother', 'grandfather']