story: [Michael] and his brother, [James], were fighting over a toy. [Elliott], [James]'s older brother, came by and took the toy, so neither of them were able to have it. [Michael] is a factory worker. He has a wonderful sister by the name of [Sandra].
query: ('Elliott', 'Sandra')
clean_story: [Michael] and his brother, [James], were fighting over a toy. [Elliott], [James]'s older brother, came by and took the toy, so neither of them were able to have it. [Michael] is a factory worker. He has a wonderful sister by the name of [Sandra].
proof_state: [{('Elliott', 'sister', 'Sandra'): [('Elliott', 'brother', 'Michael'), ('Michael', 'sister', 'Sandra')]}, {('Elliott', 'brother', 'Michael'): [('Elliott', 'brother', 'James'), ('James', 'brother', 'Michael')]}]