[Lena] went out to dinner with her sister [Cindy], and [Cindy]'s daughter [Natasha]. [James] and his daughter [Lena] are planning a trip to the mountains. They have n't been in almost 10 years.
('James', 'Natasha')
[James] and his daughter [Lena] are planning a trip to the mountains. They have n't been in almost 10 years. [Lena] went out to dinner with her sister [Cindy], and [Cindy]'s daughter [Natasha].
[{('James', 'granddaughter', 'Natasha'): [('James', 'daughter', 'Cindy'), ('Cindy', 'daughter', 'Natasha')]}, {('James', 'daughter', 'Cindy'): [('James', 'daughter', 'Lena'), ('Lena', 'sister', 'Cindy')]}]
['daughter', 'sister', 'daughter']