[Lillian] went fishing with her father [Clarence] and brother [Nicholas] last weekend. They caught a dozen sea bass.
('Clarence', 'Nicholas')
[Lillian] went fishing with her father [Clarence] and brother [Nicholas] last weekend. They caught a dozen sea bass.
[{('Clarence', 'son', 'Nicholas'): [('Clarence', 'daughter', 'Lillian'), ('Lillian', 'brother', 'Nicholas')]}]
['daughter', 'brother']