[George] is frustrated teaching his son how to drive. His son is [Jerry]. [Jerry] has an aunt named [Nancy].
('George', 'Nancy')
[George] is frustrated teaching his son how to drive. His son is [Jerry]. [Jerry] has an aunt named [Nancy].
[{('George', 'sister', 'Nancy'): [('George', 'son', 'Jerry'), ('Jerry', 'aunt', 'Nancy')]}]
['son', 'aunt']