[Michael] took [Glen] is brother home, he later visited his brother [Milton] at the hospital.
('Milton', 'Glen')
[Michael] took [Glen] is brother home, he later visited his brother [Milton] at the hospital.
[{('Milton', 'brother', 'Glen'): [('Milton', 'brother', 'Michael'), ('Michael', 'brother', 'Glen')]}]
['brother', 'brother']