[Glen] loves his mother very much. Her name is [Amy]. [Michael] took his brother [Glen] out to get drinks after a long work week.
('Michael', 'Amy')
[Michael] took his brother [Glen] out to get drinks after a long work week. [Glen] loves his mother very much. Her name is [Amy].
[{('Michael', 'mother', 'Amy'): [('Michael', 'brother', 'Glen'), ('Glen', 'mother', 'Amy')]}]
['brother', 'mother']