[Lillian]'s daughter, [Ann], just graduated high school. [Dale] took his niece [Ann] to the park to walk her dog.
('Lillian', 'Dale')
[Lillian]'s daughter, [Ann], just graduated high school. [Dale] took his niece [Ann] to the park to walk her dog.
[{('Lillian', 'brother', 'Dale'): [('Lillian', 'daughter', 'Ann'), ('Ann', 'uncle', 'Dale')]}]
['daughter', 'uncle']