[Jacob] went to the grocery store for his brother [Robert], because he broke his leg. [Wayne] is proud of his son. His name is [Jacob].
('Robert', 'Wayne')
[Jacob] went to the grocery store for his brother [Robert], because he broke his leg. [Wayne] is proud of his son. His name is [Jacob].
[{('Robert', 'father', 'Wayne'): [('Robert', 'brother', 'Jacob'), ('Jacob', 'father', 'Wayne')]}]
['brother', 'father']