[Clarence] has a daughter named [Lillian] who visits him every Sunday for dinner. [Lillian] took her son [Jerry] to the mall to shop for school clothes.
('Clarence', 'Jerry')
[Clarence] has a daughter named [Lillian] who visits him every Sunday for dinner. [Lillian] took her son [Jerry] to the mall to shop for school clothes.
[{('Clarence', 'grandson', 'Jerry'): [('Clarence', 'daughter', 'Lillian'), ('Lillian', 'son', 'Jerry')]}]
['daughter', 'son']