[Lillian] was unhappy with her son, [Douglas], and his grades. She enlisted a tutor to help him. [Clarence] is raising his daughter, [Lillian] all by himself.
('Clarence', 'Douglas')
[Clarence] is raising his daughter, [Lillian] all by himself. [Lillian] was unhappy with her son, [Douglas], and his grades. She enlisted a tutor to help him.
[{('Clarence', 'grandson', 'Douglas'): [('Clarence', 'daughter', 'Lillian'), ('Lillian', 'son', 'Douglas')]}]
['daughter', 'son']