story: [Sabrina] and her sister [Maria] played golf together. [Sabrina] won easily. [Maria]'s brother [Robert] was going to be the star in the new show. [Paul] went hunting with his son, [Robert].
query: ('Maria', 'Paul')
clean_story: [Maria]'s brother [Robert] was going to be the star in the new show. [Paul] went hunting with his son, [Robert].
proof_state: [{('Maria', 'father', 'Paul'): [('Maria', 'brother', 'Robert'), ('Robert', 'father', 'Paul')]}]