[Andrea] took her sister [Ann] out for dinner to celebrate her birthday. [Lillian] took her daughter, [Ann], out to High Tea yesterday afternoon.
('Lillian', 'Andrea')
[Lillian] took her daughter, [Ann], out to High Tea yesterday afternoon. [Andrea] took her sister [Ann] out for dinner to celebrate her birthday.
[{('Lillian', 'daughter', 'Andrea'): [('Lillian', 'daughter', 'Ann'), ('Ann', 'sister', 'Andrea')]}]
['daughter', 'sister']