[Ernest] took his son [Thomas] to soccer practice. [John] is happy that his brother, [Ernest], is becoming successful.
('John', 'Thomas')
[John] is happy that his brother, [Ernest], is becoming successful. [Ernest] took his son [Thomas] to soccer practice.
[{('John', 'nephew', 'Thomas'): [('John', 'brother', 'Ernest'), ('Ernest', 'son', 'Thomas')]}]