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