[George] and his wife [Lillian] are planning a vacation. [George]'s son [Jerry] is so excited.
('Lillian', 'Jerry')
[George] and his wife [Lillian] are planning a vacation. [George]'s son [Jerry] is so excited.
[{('Lillian', 'son', 'Jerry'): [('Lillian', 'husband', 'George'), ('George', 'son', 'Jerry')]}]
['husband', 'son']