[Lena] called [Cindy], her sister, to see if she wanted to go out to eat. [Lynn] and her sister, [Lena], went to McDonald's. [Dolores], [Lynn]'s daughter, came too, and asked if she could get a sundae.
('Cindy', 'Dolores')
[Lena] called [Cindy], her sister, to see if she wanted to go out to eat. [Lynn] and her sister, [Lena], went to McDonald's. [Dolores], [Lynn]'s daughter, came too, and asked if she could get a sundae.
[{('Cindy', 'niece', 'Dolores'): [('Cindy', 'sister', 'Lynn'), ('Lynn', 'daughter', 'Dolores')]}, {('Cindy', 'sister', 'Lynn'): [('Cindy', 'sister', 'Lena'), ('Lena', 'sister', 'Lynn')]}]
['sister', 'sister', 'daughter']