[Nicholas] asked his son, [Clarence], to help paint his house. [Theresa] met her dad, [Clarence], for the first time when he returned from deployment.
('Theresa', 'Nicholas')
[Theresa] met her dad, [Clarence], for the first time when he returned from deployment. [Nicholas] asked his son, [Clarence], to help paint his house.
[{('Theresa', 'brother', 'Nicholas'): [('Theresa', 'father', 'Clarence'), ('Clarence', 'son', 'Nicholas')]}]
['father', 'son']