[Ernest] and his brother [Jacob] were playing tag in the park. [Jacob] was proud of his son, [William].
('Ernest', 'William')
[Ernest] and his brother [Jacob] were playing tag in the park. [Jacob] was proud of his son, [William].
[{('Ernest', 'nephew', 'William'): [('Ernest', 'brother', 'Jacob'), ('Jacob', 'son', 'William')]}]