story: [James] does not know he has a son named [Scott]. [Sandra]'s grandson, [Casey], needed advise on hoe to help his father, [James]. He asked his sister, [Diana], for advice.
query: ('Diana', 'Sandra')
clean_story: [Sandra]'s grandson, [Casey], needed advise on hoe to help his father, [James]. He asked his sister, [Diana], for advice.
proof_state: [{('Diana', 'grandmother', 'Sandra'): [('Diana', 'brother', 'Casey'), ('Casey', 'grandmother', 'Sandra')]}, {('Diana', 'brother', 'Casey'): [('Diana', 'father', 'James'), ('James', 'son', 'Casey')]}]