[Dale] and his wife, [Theresa], just celebrated 10 years of marriage. [Theresa] visited her son [James] at college.
('Dale', 'James')
[Dale] and his wife, [Theresa], just celebrated 10 years of marriage. [Theresa] visited her son [James] at college.
[{('Dale', 'son', 'James'): [('Dale', 'wife', 'Theresa'), ('Theresa', 'son', 'James')]}]
['wife', 'son']