story: [Michael] went to the park with his father, [Stanley]. [Michael] made a grilled cheese for his son [Paul]. [Paul]'s brother [Kirk] ate a salad.
query: ('Stanley', 'Kirk')
clean_story: [Michael] went to the park with his father, [Stanley]. [Michael] made a grilled cheese for his son [Paul]. [Paul]'s brother [Kirk] ate a salad.
proof_state: [{('Stanley', 'grandson', 'Kirk'): [('Stanley', 'grandson', 'Paul'), ('Paul', 'brother', 'Kirk')]}, {('Stanley', 'grandson', 'Paul'): [('Stanley', 'son', 'Michael'), ('Michael', 'son', 'Paul')]}]