[Dale] and his brother [Wayne] were rarely seen apart. [Lillian] loves her brother [Dale].
('Lillian', 'Wayne')
[Lillian] loves her brother [Dale]. [Dale] and his brother [Wayne] were rarely seen apart.
[{('Lillian', 'brother', 'Wayne'): [('Lillian', 'brother', 'Dale'), ('Dale', 'brother', 'Wayne')]}]
['brother', 'brother']