[Herman] and his brother [Ernest] wanted to go to the arcade. [Ernest] asked his mother, [Mary], if they could, and she said yes.
('Herman', 'Mary')
[Herman] and his brother [Ernest] wanted to go to the arcade. [Ernest] asked his mother, [Mary], if they could, and she said yes.
[{('Herman', 'mother', 'Mary'): [('Herman', 'brother', 'Ernest'), ('Ernest', 'mother', 'Mary')]}]