[Lena] took her sister [David] to the doctor. [Lena]'s daughter [Mildred] was worried about the prognosis. [Mildred] got accepted into her dream college. Her father [Wesley] could not be any prouder.
('Wesley', 'David')
[Mildred] got accepted into her dream college. Her father [Wesley] could not be any prouder. [Lena] took her sister [David] to the doctor. [Lena]'s daughter [Mildred] was worried about the prognosis.
[{('Wesley', 'sister', 'David'): [('Wesley', 'daughter', 'Mildred'), ('Mildred', 'aunt', 'David')]}, {('Mildred', 'aunt', 'David'): [('Mildred', 'mother', 'Lena'), ('Lena', 'sister', 'David')]}]
['daughter', 'mother', 'sister']