[Clarence] and his son, [George], came back from a long day's work. [George]'s wife, [Lillian], had a hot meal prepared and waiting for them.
('Clarence', 'Lillian')
[Clarence] and his son, [George], came back from a long day's work. [George]'s wife, [Lillian], had a hot meal prepared and waiting for them.
[{('Clarence', 'daughter-in-law', 'Lillian'): [('Clarence', 'son', 'George'), ('George', 'wife', 'Lillian')]}]
['son', 'wife']