[Nicholas] and his brother [Wayne] went fishing but [Nicholas] did n't invite his other brother [George].
('George', 'Wayne')
[Nicholas] and his brother [Wayne] went fishing but [Nicholas] did n't invite his other brother [George].
[{('George', 'brother', 'Wayne'): [('George', 'brother', 'Nicholas'), ('Nicholas', 'brother', 'Wayne')]}]
['brother', 'brother']