[James] asked his father [Dale] if he could borrow some money. [Tony] and his brother [James] went to the football game together.
('Tony', 'Dale')
[Tony] and his brother [James] went to the football game together. [James] asked his father [Dale] if he could borrow some money.
[{('Tony', 'father', 'Dale'): [('Tony', 'brother', 'James'), ('James', 'father', 'Dale')]}]
['brother', 'father']