[Amy]'s sister, [Lillian], recently started acting. [Wayne] took his sister [Amy] out to dinner for her birthday.
('Lillian', 'Wayne')
[Amy]'s sister, [Lillian], recently started acting. [Wayne] took his sister [Amy] out to dinner for her birthday.
[{('Lillian', 'brother', 'Wayne'): [('Lillian', 'sister', 'Amy'), ('Amy', 'brother', 'Wayne')]}]
['sister', 'brother']