[Lillian] took her son [Jerry] and daughter [Andrea] to the grocery store during her day off.
('Andrea', 'Jerry')
[Lillian] took her son [Jerry] and daughter [Andrea] to the grocery store during her day off.
[{('Andrea', 'brother', 'Jerry'): [('Andrea', 'mother', 'Lillian'), ('Lillian', 'son', 'Jerry')]}]
['mother', 'son']