[Lena] went out to dinner with her sister [David], and [David]'s daughter [Marie]. [James] took his daughter [Lena] to the zoo for her birthday. Then they went to go get some ice cream.
('James', 'Marie')
[James] took his daughter [Lena] to the zoo for her birthday. Then they went to go get some ice cream. [Lena] went out to dinner with her sister [David], and [David]'s daughter [Marie].
[{('James', 'granddaughter', 'Marie'): [('James', 'daughter', 'David'), ('David', 'daughter', 'Marie')]}, {('James', 'daughter', 'David'): [('James', 'daughter', 'Lena'), ('Lena', 'sister', 'David')]}]
['daughter', 'sister', 'daughter']