story: [Dwight] likes playing catch with his sister's son. His name is [Kevin]. [Dorothy] read her son [Kevin] a bedtime story every night.
query: ('Dorothy', 'Dwight')
clean_story: [Dorothy] read her son [Kevin] a bedtime story every night. [Dwight] likes playing catch with his sister's son. His name is [Kevin].
proof_state: [{('Dorothy', 'brother', 'Dwight'): [('Dorothy', 'son', 'Kevin'), ('Kevin', 'uncle', 'Dwight')]}]