story: [Rose] could n't wait to get off the plane to see her mother, [Jennifer]. [Casey] and his sister [Diana] stood in line at the fair. [Jennifer] has a sister named [Diana] and a brother named [Scott].
query: ('Jennifer', 'Casey')
clean_story: [Jennifer] has a sister named [Diana] and a brother named [Scott]. [Casey] and his sister [Diana] stood in line at the fair.
proof_state: [{('Jennifer', 'brother', 'Casey'): [('Jennifer', 'brother', 'Scott'), ('Scott', 'brother', 'Casey')]}, {('Scott', 'brother', 'Casey'): [('Scott', 'sister', 'Diana'), ('Diana', 'brother', 'Casey')]}]