[Nancy] took her younger sister [Lillian] to the carnival last weekend. [Andrea]'s mom, [Lillian], has recently taken art classes.
('Andrea', 'Nancy')
[Andrea]'s mom, [Lillian], has recently taken art classes. [Nancy] took her younger sister [Lillian] to the carnival last weekend.
[{('Andrea', 'aunt', 'Nancy'): [('Andrea', 'mother', 'Lillian'), ('Lillian', 'sister', 'Nancy')]}]
['mother', 'sister']