story: [Otto] and his brother [Paul] got into a fight over who was the better basketball player. [Otto] went to the wedding ceremony for his brother [Preston]. [Otto] enjoys talking to his sister. Her name is [Nancy].
query: ('Paul', 'Preston')
clean_story: [Otto] and his brother [Paul] got into a fight over who was the better basketball player. [Otto] went to the wedding ceremony for his brother [Preston].
proof_state: [{('Paul', 'brother', 'Preston'): [('Paul', 'brother', 'Otto'), ('Otto', 'brother', 'Preston')]}]