[Ashley] drove her daughter [Nancy] to the hospital. [Nancy]'s son [Kevin] showed up shortly after.
('Ashley', 'Kevin')
[Ashley] drove her daughter [Nancy] to the hospital. [Nancy]'s son [Kevin] showed up shortly after.
[{('Ashley', 'grandson', 'Kevin'): [('Ashley', 'daughter', 'Nancy'), ('Nancy', 'son', 'Kevin')]}]
['daughter', 'son']