[Nicholas]'s sister, [Nancy], did n't know how deal with drama at work. She asked her sister, [Lillian] for advice
('Nicholas', 'Nancy')
[Nicholas]'s sister, [Nancy], did n't know how deal with drama at work. She asked her sister, [Lillian] for advice
[{('Nicholas', 'sister', 'Nancy'): [('Nicholas', 'sister', 'Lillian'), ('Lillian', 'sister', 'Nancy')]}]
['sister', 'sister']