[Lillian] and her daughter [Ann] went to the park. [Ann] did not invite her brother [Jerry] to go to the park.
('Jerry', 'Lillian')
[Lillian] and her daughter [Ann] went to the park. [Ann] did not invite her brother [Jerry] to go to the park.
[{('Jerry', 'mother', 'Lillian'): [('Jerry', 'sister', 'Ann'), ('Ann', 'mother', 'Lillian')]}]
['sister', 'mother']