[Douglas]'s sister, [Andrea], did n't have time to play with him. She was busy helping her grandmother [Ashley] with the dishes.
('Douglas', 'Ashley')
[Douglas]'s sister, [Andrea], did n't have time to play with him. She was busy helping her grandmother [Ashley] with the dishes.
[{('Douglas', 'grandmother', 'Ashley'): [('Douglas', 'sister', 'Andrea'), ('Andrea', 'grandmother', 'Ashley')]}]
['sister', 'grandmother']