[Wayne] was proud of his son, [Robert]. [Wayne] and his brother [George] are fighting again.
('George', 'Robert')
[Wayne] and his brother [George] are fighting again. [Wayne] was proud of his son, [Robert].
[{('George', 'nephew', 'Robert'): [('George', 'brother', 'Wayne'), ('Wayne', 'son', 'Robert')]}]
['brother', 'son']