[Bobby] takes care of his brother, [Johnson] and his grandmother, [Frances]. [Johnson] called his brother [Michael] on the phone. He wanted to go out for some beers.
('Michael', 'Frances')
[Johnson] called his brother [Michael] on the phone. He wanted to go out for some beers. [Bobby] takes care of his brother, [Johnson] and his grandmother, [Frances].
[{('Michael', 'grandmother', 'Frances'): [('Michael', 'brother', 'Johnson'), ('Johnson', 'grandmother', 'Frances')]}, {('Johnson', 'grandmother', 'Frances'): [('Johnson', 'brother', 'Bobby'), ('Bobby', 'grandmother', 'Frances')]}]
['brother', 'brother', 'grandmother']