[Tracy] went to the arcade with her niece, [Jennifer]. They had lots of fun playing together. [Louis] went to the park with his father, [Harold]. [Jennifer] and [Nicole] got into a fight as sisters sometimes do. [Nicole]'s father [Louis] yelled at them to behave.
('Harold', 'Tracy')
[Louis] went to the park with his father, [Harold]. [Jennifer] and [Nicole] got into a fight as sisters sometimes do. [Nicole]'s father [Louis] yelled at them to behave. [Tracy] went to the arcade with her niece, [Jennifer]. They had lots of fun playing together.
[{('Harold', 'daughter', 'Tracy'): [('Harold', 'son', 'Louis'), ('Louis', 'sister', 'Tracy')]}, {('Louis', 'sister', 'Tracy'): [('Louis', 'daughter', 'Jennifer'), ('Jennifer', 'aunt', 'Tracy')]}, {('Louis', 'daughter', 'Jennifer'): [('Louis', 'daughter', 'Nicole'), ('Nicole', 'sister', 'Jennifer')]}]
['son', 'daughter', 'sister', 'aunt']