[Wesley] went to pick up his daughter [Mildred] from school on the last day before summer vacation. [Mildred] and her mother [Lena] drove out to the family farm to visit [Lena]'s mother, [Frances].
('Wesley', 'Frances')
[Wesley] went to pick up his daughter [Mildred] from school on the last day before summer vacation. [Mildred] and her mother [Lena] drove out to the family farm to visit [Lena]'s mother, [Frances].
[{('Wesley', 'mother', 'Frances'): [('Wesley', 'daughter', 'Mildred'), ('Mildred', 'grandmother', 'Frances')]}, {('Mildred', 'grandmother', 'Frances'): [('Mildred', 'mother', 'Lena'), ('Lena', 'mother', 'Frances')]}]
['daughter', 'mother', 'mother']