[Clarence] and his daughter [Lillian] helped to make Thanksgiving dinner together. [Lillian]'s son, [Douglas], recently started a pawn shop.
('Clarence', 'Douglas')
[Clarence] and his daughter [Lillian] helped to make Thanksgiving dinner together. [Lillian]'s son, [Douglas], recently started a pawn shop.
[{('Clarence', 'grandson', 'Douglas'): [('Clarence', 'daughter', 'Lillian'), ('Lillian', 'son', 'Douglas')]}]
['daughter', 'son']