[Tony] went to [Theresa]'s house for dinner. [Tony] and his brother [James] went to the arcade. They had a wonderful time.
('James', 'Theresa')
[Tony] and his brother [James] went to the arcade. They had a wonderful time. [Tony] went to [Theresa]'s house for dinner.
[{('James', 'mother', 'Theresa'): [('James', 'brother', 'Tony'), ('Tony', 'mother', 'Theresa')]}]
['brother', 'mother']