story: [Christopher] liked to play games with his sister, [Lisa]. [Dorothy]'s brother [Christopher] was going to be the star in the new show.
query: ('Dorothy', 'Lisa')
clean_story: [Dorothy]'s brother [Christopher] was going to be the star in the new show. [Christopher] liked to play games with his sister, [Lisa].
proof_state: [{('Dorothy', 'sister', 'Lisa'): [('Dorothy', 'brother', 'Christopher'), ('Christopher', 'sister', 'Lisa')]}]