[Brent] called for his wife [Margaret] for dinner from the kitchen window. She was painting the deck outside with [Brent]'s father [John].
('John', 'Margaret')
[Brent] called for his wife [Margaret] for dinner from the kitchen window. She was painting the deck outside with [Brent]'s father [John].
[{('John', 'daughter-in-law', 'Margaret'): [('John', 'son', 'Brent'), ('Brent', 'wife', 'Margaret')]}]