[Dale] and his wife [Theresa] made chili. [Theresa]'s son [Nicolas] loves their chili.
('Dale', 'Nicolas')
[Dale] and his wife [Theresa] made chili. [Theresa]'s son [Nicolas] loves their chili.
[{('Dale', 'son', 'Nicolas'): [('Dale', 'wife', 'Theresa'), ('Theresa', 'son', 'Nicolas')]}]
['wife', 'son']