story: [Adam] is [Nancy]'s father. [Mary] and her mother [Crystal] went to volunteer at the homeless shelter last weekend. [Crystal] and her father, [Adam], went to the carnival. [Adam] took [Crystal] on the Tilt-o-Whirl.
query: ('Crystal', 'Nancy')
clean_story: [Crystal] and her father, [Adam], went to the carnival. [Adam] took [Crystal] on the Tilt-o-Whirl. [Adam] is [Nancy]'s father.
proof_state: [{('Crystal', 'sister', 'Nancy'): [('Crystal', 'father', 'Adam'), ('Adam', 'daughter', 'Nancy')]}]