[Wayne] went to the baseball game with his son [Robert] [Robert] asked his grandmother [Ashley] to help him tie his shoes. [Ashley] told him he was old enough to do it himself.
('Wayne', 'Ashley')
[Wayne] went to the baseball game with his son [Robert] [Robert] asked his grandmother [Ashley] to help him tie his shoes. [Ashley] told him he was old enough to do it himself.
[{('Wayne', 'mother', 'Ashley'): [('Wayne', 'son', 'Robert'), ('Robert', 'grandmother', 'Ashley')]}]
['son', 'grandmother']