[David] is taking a trip to see her sister [Lynn]. [James] has been trying all day to reach his daughter [David] on the phone. [Lynn] was talking about food with her sister [Lena].
('James', 'Lena')
[James] has been trying all day to reach his daughter [David] on the phone. [David] is taking a trip to see her sister [Lynn]. [Lynn] was talking about food with her sister [Lena].
[{('James', 'daughter', 'Lena'): [('James', 'daughter', 'David'), ('David', 'sister', 'Lena')]}, {('David', 'sister', 'Lena'): [('David', 'sister', 'Lynn'), ('Lynn', 'sister', 'Lena')]}]
['daughter', 'sister', 'sister']