[Michelle] and her sister [Elsie] went to the movies. [Elsie]'s grandfather [Harold] took them. [Marie] told her daughter [Michelle] to wash up. Dinner was ready. [Marie] took her son [Allan] to the park.
('Allan', 'Harold')
[Marie] took her son [Allan] to the park. [Marie] told her daughter [Michelle] to wash up. Dinner was ready. [Michelle] and her sister [Elsie] went to the movies. [Elsie]'s grandfather [Harold] took them.
[{('Allan', 'grandfather', 'Harold'): [('Allan', 'sister', 'Michelle'), ('Michelle', 'grandfather', 'Harold')]}, {('Allan', 'sister', 'Michelle'): [('Allan', 'mother', 'Marie'), ('Marie', 'daughter', 'Michelle')]}, {('Michelle', 'grandfather', 'Harold'): [('Michelle', 'sister', 'Elsie'), ('Elsie', 'grandfather', 'Harold')]}]
['mother', 'daughter', 'sister', 'grandfather']