[Nancy] has been waiting around all day for her son, [Kevin]. [Kevin] and his aunt [Lillian] are spending the day together.
('Nancy', 'Lillian')
[Nancy] has been waiting around all day for her son, [Kevin]. [Kevin] and his aunt [Lillian] are spending the day together.
[{('Nancy', 'sister', 'Lillian'): [('Nancy', 'son', 'Kevin'), ('Kevin', 'aunt', 'Lillian')]}]
['son', 'aunt']