[Dale] is a man with a son named [Tony]. [Dale] is a factory worker. He has a wonderful sister by the name of [Nancy].
('Tony', 'Nancy')
[Dale] is a man with a son named [Tony]. [Dale] is a factory worker. He has a wonderful sister by the name of [Nancy].
[{('Tony', 'aunt', 'Nancy'): [('Tony', 'father', 'Dale'), ('Dale', 'sister', 'Nancy')]}]
['father', 'sister']