story: [Sandra] and her nephew [Paul] went to the store to buy some new tea. [Michael] is helping his son study. His name is [Paul]. [Sandra] loves cooking for her son. His name is [Matthew].
query: ('Michael', 'Matthew')
clean_story: [Michael] is helping his son study. His name is [Paul]. [Sandra] and her nephew [Paul] went to the store to buy some new tea. [Sandra] loves cooking for her son. His name is [Matthew].
proof_state: [{('Michael', 'nephew', 'Matthew'): [('Michael', 'sister', 'Sandra'), ('Sandra', 'son', 'Matthew')]}, {('Michael', 'sister', 'Sandra'): [('Michael', 'son', 'Paul'), ('Paul', 'aunt', 'Sandra')]}]