[Clarence]'s son, [Dale], was ill and needed to be picked up at school. [Clarence] hurried to his side. [Wayne]'s father, [Clarence], bought him some ice cream.
('Wayne', 'Dale')
[Wayne]'s father, [Clarence], bought him some ice cream. [Clarence]'s son, [Dale], was ill and needed to be picked up at school. [Clarence] hurried to his side.
[{('Wayne', 'brother', 'Dale'): [('Wayne', 'father', 'Clarence'), ('Clarence', 'son', 'Dale')]}]
['father', 'son']