[Wayne] is a man with a brother named [Nicholas]. [Wayne] took his sister [Lillian] out to dinner for her birthday.
('Lillian', 'Nicholas')
[Wayne] took his sister [Lillian] out to dinner for her birthday. [Wayne] is a man with a brother named [Nicholas].
[{('Lillian', 'brother', 'Nicholas'): [('Lillian', 'brother', 'Wayne'), ('Wayne', 'brother', 'Nicholas')]}]
['brother', 'brother']