[Clarence]'s son, [Dale], went to the candy store. [Dale]'s brother, [Wayne], went with him.
('Clarence', 'Wayne')
[Clarence]'s son, [Dale], went to the candy store. [Dale]'s brother, [Wayne], went with him.
[{('Clarence', 'son', 'Wayne'): [('Clarence', 'son', 'Dale'), ('Dale', 'brother', 'Wayne')]}]
['son', 'brother']