[John] and his brother [Ernest] were playing tag in the park. [Ernest]'s son is [Fernando]. [Fernando] and his father always go fishing together on Sundays and have a great time together.
('John', 'Fernando')
[John] and his brother [Ernest] were playing tag in the park. [Ernest]'s son is [Fernando]. [Fernando] and his father always go fishing together on Sundays and have a great time together.
[{('John', 'nephew', 'Fernando'): [('John', 'brother', 'Ernest'), ('Ernest', 'son', 'Fernando')]}]