story: [Mark] always enjoyed playing with his sister, [Mary], when they were growing up. [Mark] called his brother [Bernard] on the phone. He wanted to go out for some beers. [Bernard] went to [Crystal]'s house for dinner.
query: ('Bernard', 'Mary')
clean_story: [Mark] called his brother [Bernard] on the phone. He wanted to go out for some beers. [Mark] always enjoyed playing with his sister, [Mary], when they were growing up.
proof_state: [{('Bernard', 'sister', 'Mary'): [('Bernard', 'brother', 'Mark'), ('Mark', 'sister', 'Mary')]}]