[Ronald]'s sister, [Lizzie], did n't have time to play with him. She was busy helping her grandmother [Shantel] with the dishes. [Robert] was waiting patiently for his wife, [Marie]. [Marie]'s son, [Ronald], went with her to the store to buy candy for Halloween.
('Robert', 'Shantel')
[Robert] was waiting patiently for his wife, [Marie]. [Marie]'s son, [Ronald], went with her to the store to buy candy for Halloween. [Ronald]'s sister, [Lizzie], did n't have time to play with him. She was busy helping her grandmother [Shantel] with the dishes.
[{('Robert', 'mother-in-law', 'Shantel'): [('Robert', 'wife', 'Marie'), ('Marie', 'mother', 'Shantel')]}, {('Marie', 'mother', 'Shantel'): [('Marie', 'daughter', 'Lizzie'), ('Lizzie', 'grandmother', 'Shantel')]}, {('Marie', 'daughter', 'Lizzie'): [('Marie', 'son', 'Ronald'), ('Ronald', 'sister', 'Lizzie')]}]
['wife', 'son', 'sister', 'grandmother']