[Lizzie] is looking for a good gift for her sister [Michelle]. [Lizzie] invited her father [Robert] to dinner. [Harold] and his daughter [Marie] went to the store. [Marie]'s child, [Michelle] was already there waiting for them.
('Robert', 'Harold')
[Lizzie] invited her father [Robert] to dinner. [Lizzie] is looking for a good gift for her sister [Michelle]. [Harold] and his daughter [Marie] went to the store. [Marie]'s child, [Michelle] was already there waiting for them.
[{('Robert', 'father', 'Harold'): [('Robert', 'daughter', 'Michelle'), ('Michelle', 'grandfather', 'Harold')]}, {('Robert', 'daughter', 'Michelle'): [('Robert', 'daughter', 'Lizzie'), ('Lizzie', 'sister', 'Michelle')]}, {('Michelle', 'grandfather', 'Harold'): [('Michelle', 'mother', 'Marie'), ('Marie', 'father', 'Harold')]}]
['daughter', 'sister', 'mother', 'father']