[James] brought home straight A's to his father [Dale]. [Tony] brought home straight C's to his father [Dale].
('Tony', 'James')
[James] brought home straight A's to his father [Dale]. [Tony] brought home straight C's to his father [Dale].
[{('Tony', 'brother', 'James'): [('Tony', 'father', 'Dale'), ('Dale', 'son', 'James')]}]
['father', 'son']