story: [Donna] and her brother [Scott] were having a wonderful time at Disneyland. [David] and his sister [Donna] were twins. Still, they did n't look very much alike.
query: ('David', 'Scott')
clean_story: [David] and his sister [Donna] were twins. Still, they did n't look very much alike. [Donna] and her brother [Scott] were having a wonderful time at Disneyland.
proof_state: [{('David', 'brother', 'Scott'): [('David', 'sister', 'Donna'), ('Donna', 'brother', 'Scott')]}]