[Dale] was n't sure if he actually wanted to visit his sister [Lillian]. After he thought about it, he decided to visit his brother [Nicholas] instead.
('Nicholas', 'Lillian')
[Dale] was n't sure if he actually wanted to visit his sister [Lillian]. After he thought about it, he decided to visit his brother [Nicholas] instead.
[{('Nicholas', 'sister', 'Lillian'): [('Nicholas', 'brother', 'Dale'), ('Dale', 'sister', 'Lillian')]}]
['brother', 'sister']