[Lillian] is getting married. She is looking forward to her sister, [Nancy], attending. They have n't seen each other since [Nancy] relocated to California with her husband 3 years ago. [Lillian] is a lovely mother. She has a son named [John], who she loves infinitely.
('John', 'Nancy')
[Lillian] is a lovely mother. She has a son named [John], who she loves infinitely. [Lillian] is getting married. She is looking forward to her sister, [Nancy], attending. They have n't seen each other since [Nancy] relocated to California with her husband 3 years ago.
[{('John', 'aunt', 'Nancy'): [('John', 'mother', 'Lillian'), ('Lillian', 'sister', 'Nancy')]}]
['mother', 'sister']