[Lillian] was surprised when her husband, [George], and her son, [Jerry], came back early from their trip to Spain.
('George', 'Jerry')
[Lillian] was surprised when her husband, [George], and her son, [Jerry], came back early from their trip to Spain.
[{('George', 'son', 'Jerry'): [('George', 'wife', 'Lillian'), ('Lillian', 'son', 'Jerry')]}]
['wife', 'son']