[Tony] loves his father, [Dale], very much, and [Dale] loves him. [Dale]'s sister, [Nancy], loves [Tony] a whole lot, too.
('Tony', 'Nancy')
[Tony] loves his father, [Dale], very much, and [Dale] loves him. [Dale]'s sister, [Nancy], loves [Tony] a whole lot, too.
[{('Tony', 'aunt', 'Nancy'): [('Tony', 'father', 'Dale'), ('Dale', 'sister', 'Nancy')]}]
['father', 'sister']