[Theresa]'s two sons, [Nicolas] and [James] are both attending college in the fall.
('Nicolas', 'James')
[Theresa]'s two sons, [Nicolas] and [James] are both attending college in the fall.
[{('Nicolas', 'brother', 'James'): [('Nicolas', 'mother', 'Theresa'), ('Theresa', 'son', 'James')]}]
['mother', 'son']