[Clarence] was getting ready to visit his daughter [Nancy] after work. [Nancy] had to drop her daughter [Louise] off at the babysitter first.
('Louise', 'Clarence')
[Clarence] was getting ready to visit his daughter [Nancy] after work. [Nancy] had to drop her daughter [Louise] off at the babysitter first.
[{('Louise', 'grandfather', 'Clarence'): [('Louise', 'mother', 'Nancy'), ('Nancy', 'father', 'Clarence')]}]
['mother', 'father']