[Lillian] and her son [Jerry] went shopping to get [Lillian] 'husband [George] a birthday gift yesterday.
('George', 'Jerry')
[Lillian] and her son [Jerry] went shopping to get [Lillian] 'husband [George] a birthday gift yesterday.
[{('George', 'son', 'Jerry'): [('George', 'wife', 'Lillian'), ('Lillian', 'son', 'Jerry')]}]
['wife', 'son']