[Lillian] has a son named [Timothy]. [George] and his wife, [Lillian], went to a football game. [George] had a wonderful time, but [Lillian] was bored.
('George', 'Timothy')
[George] and his wife, [Lillian], went to a football game. [George] had a wonderful time, but [Lillian] was bored. [Lillian] has a son named [Timothy].
[{('George', 'son', 'Timothy'): [('George', 'wife', 'Lillian'), ('Lillian', 'son', 'Timothy')]}]
['wife', 'son']