[Dale] bought his wife [Theresa] roses. [Clarence] is frustrated teaching his son how to drive. His son is [Dale].
('Clarence', 'Theresa')
[Clarence] is frustrated teaching his son how to drive. His son is [Dale]. [Dale] bought his wife [Theresa] roses.
[{('Clarence', 'daughter-in-law', 'Theresa'): [('Clarence', 'son', 'Dale'), ('Dale', 'wife', 'Theresa')]}]
['son', 'wife']