[Leonard] and his sister [Wilhelmina] were twins. Still, they did n't look very much alike. [Cindy] was celebrating her birthday with her mother [Frances]. [Cindy] picked up her daughter [Wilhelmina] from school early.
('Leonard', 'Frances')
[Leonard] and his sister [Wilhelmina] were twins. Still, they did n't look very much alike. [Cindy] picked up her daughter [Wilhelmina] from school early. [Cindy] was celebrating her birthday with her mother [Frances].
[{('Leonard', 'grandmother', 'Frances'): [('Leonard', 'mother', 'Cindy'), ('Cindy', 'mother', 'Frances')]}, {('Leonard', 'mother', 'Cindy'): [('Leonard', 'sister', 'Wilhelmina'), ('Wilhelmina', 'mother', 'Cindy')]}]
['sister', 'mother', 'mother']