[Amy] liked to play hide and seek with her son [Glen]. [Glen] likes to go fishing with his sister. Her name is [Mary].
('Amy', 'Mary')
[Amy] liked to play hide and seek with her son [Glen]. [Glen] likes to go fishing with his sister. Her name is [Mary].
[{('Amy', 'daughter', 'Mary'): [('Amy', 'son', 'Glen'), ('Glen', 'sister', 'Mary')]}]
['son', 'sister']