[Dale] was proud of his son, [James]. [Nicolas] and his father [Dale] played video games all day last Saturday.
('Nicolas', 'James')
[Nicolas] and his father [Dale] played video games all day last Saturday. [Dale] was proud of his son, [James].
[{('Nicolas', 'brother', 'James'): [('Nicolas', 'father', 'Dale'), ('Dale', 'son', 'James')]}]
['father', 'son']