[Nicholas] has a lovely daughter who plays piano named [Jennifer]. [Nicholas] also has a son [Glen] who loves to play sports.
('Glen', 'Jennifer')
[Nicholas] has a lovely daughter who plays piano named [Jennifer]. [Nicholas] also has a son [Glen] who loves to play sports.
[{('Glen', 'sister', 'Jennifer'): [('Glen', 'father', 'Nicholas'), ('Nicholas', 'daughter', 'Jennifer')]}]
['father', 'daughter']