[Lynn]'s sister [Cindy] painted a picture for [Lynn]'s mother, [Frances]. [Cindy] is getting married. She is looking forward to her sister, [David], attending. They have n't seen each other since [David] relocated to California with her husband 3 years ago.
('Frances', 'David')
[Lynn]'s sister [Cindy] painted a picture for [Lynn]'s mother, [Frances]. [Cindy] is getting married. She is looking forward to her sister, [David], attending. They have n't seen each other since [David] relocated to California with her husband 3 years ago.
[{('Frances', 'daughter', 'David'): [('Frances', 'daughter', 'Cindy'), ('Cindy', 'sister', 'David')]}, {('Frances', 'daughter', 'Cindy'): [('Frances', 'daughter', 'Lynn'), ('Lynn', 'sister', 'Cindy')]}]
['daughter', 'sister', 'sister']