story: [Sandra] asked her son [Anthony] to help her fix her television. [Michael] ran over to see his uncle [Anthony]. [Michael] has a brother who is younger than him. The brother has a sister whose name is [Marian].
query: ('Sandra', 'Marian')
clean_story: [Sandra] asked her son [Anthony] to help her fix her television. [Michael] ran over to see his uncle [Anthony]. [Michael] has a brother who is younger than him. The brother has a sister whose name is [Marian].
proof_state: [{('Sandra', 'sister', 'Marian'): [('Sandra', 'brother', 'Michael'), ('Michael', 'sister', 'Marian')]}, {('Sandra', 'brother', 'Michael'): [('Sandra', 'son', 'Anthony'), ('Anthony', 'uncle', 'Michael')]}]