story: [Fletcher] went golfing with his grandfather [Adam] and his mother [Nancy]. [Paul] is taking his son [Fletcher] on a camping trip for the weekend.
query: ('Nancy', 'Adam')
clean_story: [Fletcher] went golfing with his grandfather [Adam] and his mother [Nancy].
proof_state: [{('Nancy', 'father', 'Adam'): [('Nancy', 'son', 'Fletcher'), ('Fletcher', 'grandfather', 'Adam')]}]