[Ashley] made apple pie with her grandson [Kevin]. [Nancy] took her son [Kevin] to the football game.
('Nancy', 'Ashley')
[Nancy] took her son [Kevin] to the football game. [Ashley] made apple pie with her grandson [Kevin].
[{('Nancy', 'mother', 'Ashley'): [('Nancy', 'son', 'Kevin'), ('Kevin', 'grandmother', 'Ashley')]}]
['son', 'grandmother']