[Amy] and her father, [Clarence], were dancing. [Milton] cut in and asked his mother if he could dance with her next.
('Milton', 'Clarence')
[Amy] and her father, [Clarence], were dancing. [Milton] cut in and asked his mother if he could dance with her next.
[{('Milton', 'grandfather', 'Clarence'): [('Milton', 'mother', 'Amy'), ('Amy', 'father', 'Clarence')]}]
['mother', 'father']