story: [Casey] was sad to learn that his sister [Jennifer] was not going to make it to dinner like they had planned. [Rose] and her husband [James] took their son [Casey] to school. [Rose]'s other son [Errol] stayed home.
query: ('Casey', 'Errol')
clean_story: [Rose] and her husband [James] took their son [Casey] to school. [Rose]'s other son [Errol] stayed home.
proof_state: [{('Casey', 'brother', 'Errol'): [('Casey', 'father', 'James'), ('James', 'son', 'Errol')]}, {('James', 'son', 'Errol'): [('James', 'wife', 'Rose'), ('Rose', 'son', 'Errol')]}]