[Nicholas] asked his brother [Wayne] to help him fix his car and he said he would after he got off work. [Clarence] is helping his son study. His name is [Nicholas].
('Clarence', 'Wayne')
[Clarence] is helping his son study. His name is [Nicholas]. [Nicholas] asked his brother [Wayne] to help him fix his car and he said he would after he got off work.
[{('Clarence', 'son', 'Wayne'): [('Clarence', 'son', 'Nicholas'), ('Nicholas', 'brother', 'Wayne')]}]
['son', 'brother']