[Wayne] is a man with a son named [Jeff]. [Kevin] always looked up to his brother [Jeff].
('Kevin', 'Wayne')
[Kevin] always looked up to his brother [Jeff]. [Wayne] is a man with a son named [Jeff].
[{('Kevin', 'father', 'Wayne'): [('Kevin', 'brother', 'Jeff'), ('Jeff', 'father', 'Wayne')]}]
['brother', 'father']