[Harold] babysat his granddaughter [Erika] so [Erika]'s father [Antonio] and his wife [Tracy] could go out for a romantic dinner. [Harold] went to pick up his daughter [Dorothy] from school on the last day before summer vacation.
('Tracy', 'Dorothy')
[Harold] babysat his granddaughter [Erika] so [Erika]'s father [Antonio] and his wife [Tracy] could go out for a romantic dinner. [Harold] went to pick up his daughter [Dorothy] from school on the last day before summer vacation.
[{('Tracy', 'sister', 'Dorothy'): [('Tracy', 'father', 'Harold'), ('Harold', 'daughter', 'Dorothy')]}, {('Tracy', 'father', 'Harold'): [('Tracy', 'daughter', 'Erika'), ('Erika', 'grandfather', 'Harold')]}, {('Tracy', 'daughter', 'Erika'): [('Tracy', 'husband', 'Antonio'), ('Antonio', 'daughter', 'Erika')]}]
['husband', 'daughter', 'grandfather', 'daughter']