[Marie] likes taking her son [John] to school. [Elsie] was swimming with her sister [Michelle]. [Elsie]'s brother [John] was tanning. [Marie] invited her father [Harold] to her high school father daughter dance.
('Harold', 'Michelle')
[Marie] invited her father [Harold] to her high school father daughter dance. [Marie] likes taking her son [John] to school. [Elsie] was swimming with her sister [Michelle]. [Elsie]'s brother [John] was tanning.
[{('Harold', 'granddaughter', 'Michelle'): [('Harold', 'daughter', 'Marie'), ('Marie', 'daughter', 'Michelle')]}, {('Marie', 'daughter', 'Michelle'): [('Marie', 'daughter', 'Elsie'), ('Elsie', 'sister', 'Michelle')]}, {('Marie', 'daughter', 'Elsie'): [('Marie', 'son', 'John'), ('John', 'sister', 'Elsie')]}]
['daughter', 'son', 'sister', 'sister']