[Emily] asked her brother, [Michael], what he was doing this weekend. [Michael] told her he was spending it with his brother [Glen].
('Emily', 'Glen')
[Emily] asked her brother, [Michael], what he was doing this weekend. [Michael] told her he was spending it with his brother [Glen].
[{('Emily', 'brother', 'Glen'): [('Emily', 'brother', 'Michael'), ('Michael', 'brother', 'Glen')]}]
['brother', 'brother']