[Ashley] took her grandson [Robert] to school. [Robert]'s sister [Louise] stayed home because she was suspended.
('Ashley', 'Louise')
[Ashley] took her grandson [Robert] to school. [Robert]'s sister [Louise] stayed home because she was suspended.
[{('Ashley', 'granddaughter', 'Louise'): [('Ashley', 'grandson', 'Robert'), ('Robert', 'sister', 'Louise')]}]
['grandson', 'sister']