[Pamela] loved played dolls with her grandmother, [Frances]. [Pamela] and her sister [Mildred] were going to the store to buy groceries. [Mildred]'s mom, [Lena], called [Mildred] to ask her to buy a gallon of milk.
('Lena', 'Frances')
[Pamela] and her sister [Mildred] were going to the store to buy groceries. [Mildred]'s mom, [Lena], called [Mildred] to ask her to buy a gallon of milk. [Pamela] loved played dolls with her grandmother, [Frances].
[{('Lena', 'mother', 'Frances'): [('Lena', 'daughter', 'Pamela'), ('Pamela', 'grandmother', 'Frances')]}, {('Lena', 'daughter', 'Pamela'): [('Lena', 'daughter', 'Mildred'), ('Mildred', 'sister', 'Pamela')]}]
['daughter', 'sister', 'grandmother']