[Wayne] was playing catch with his son, [Jacob]. [Linda] imitated her brother throwing the ball back and forth.
('Linda', 'Wayne')
[Wayne] was playing catch with his son, [Jacob]. [Linda] imitated her brother throwing the ball back and forth.
[{('Linda', 'father', 'Wayne'): [('Linda', 'brother', 'Jacob'), ('Jacob', 'father', 'Wayne')]}]
['brother', 'father']