[Douglas] went with his wife [April] and son [George] to see the newest superhero movie.
('George', 'April')
[Douglas] went with his wife [April] and son [George] to see the newest superhero movie.
[{('George', 'daughter-in-law', 'April'): [('George', 'son', 'Douglas'), ('Douglas', 'wife', 'April')]}]
['son', 'wife']