[Cindy] and her sister [Lena] played golf together. [Cindy] won easily. [Lena] has a sister named [David]. [David] did n't have the best upbringing, although her father, [James] tried his best.
('James', 'Cindy')
[Lena] has a sister named [David]. [David] did n't have the best upbringing, although her father, [James] tried his best. [Cindy] and her sister [Lena] played golf together. [Cindy] won easily.
[{('James', 'daughter', 'Cindy'): [('James', 'daughter', 'David'), ('David', 'sister', 'Cindy')]}, {('David', 'sister', 'Cindy'): [('David', 'sister', 'Lena'), ('Lena', 'sister', 'Cindy')]}]
['daughter', 'sister', 'sister']