[Amy] took her sister [Lillian] out for dinner to celebrate her birthday. [Jerry] loves his mother very much. Her name is [Lillian].
('Jerry', 'Amy')
[Jerry] loves his mother very much. Her name is [Lillian]. [Amy] took her sister [Lillian] out for dinner to celebrate her birthday.
[{('Jerry', 'aunt', 'Amy'): [('Jerry', 'mother', 'Lillian'), ('Lillian', 'sister', 'Amy')]}]
['mother', 'sister']