story: [Michael]'s wife, [Alma], went to a gas station to check on the gas prices [Alma] takes her son [Chad] to the park every Saturday.
query: ('Michael', 'Chad')
clean_story: [Michael]'s wife, [Alma], went to a gas station to check on the gas prices [Alma] takes her son [Chad] to the park every Saturday.
proof_state: [{('Michael', 'son', 'Chad'): [('Michael', 'wife', 'Alma'), ('Alma', 'son', 'Chad')]}]