[Amy] and her sister [Lillian] are the only children in their family. [Amy] told her daughter [Mary] to wash up. Dinner was ready.
('Lillian', 'Mary')
[Amy] and her sister [Lillian] are the only children in their family. [Amy] told her daughter [Mary] to wash up. Dinner was ready.
[{('Lillian', 'niece', 'Mary'): [('Lillian', 'sister', 'Amy'), ('Amy', 'daughter', 'Mary')]}]
['sister', 'daughter']