story: [Nancy] and her daughter [Maria] went out for ice cream. [Nancy] got a cone and [Maria] got a sundae. [Nancy] and her father, [Adam], were dancing. [Leo] cut in and asked his mother if he could dance with her next.
query: ('Leo', 'Adam')
clean_story: [Nancy] and her father, [Adam], were dancing. [Leo] cut in and asked his mother if he could dance with her next.
proof_state: [{('Leo', 'grandfather', 'Adam'): [('Leo', 'mother', 'Nancy'), ('Nancy', 'father', 'Adam')]}]