[David]'s aunt, [Constance], bought him a car on valentines [Jacob] and his son [David] went to the store to by bread.
('Jacob', 'Constance')
[Jacob] and his son [David] went to the store to by bread. [David]'s aunt, [Constance], bought him a car on valentines
[{('Jacob', 'sister', 'Constance'): [('Jacob', 'son', 'David'), ('David', 'aunt', 'Constance')]}]