story: [Emmanuel] and his brother [Clarence] went out for lunch. [Emmanuel] had a burger, and [Clarence] had a chicken sandwich. [Marian] and her brother [Alan] wanted to go to the cinema. [Alan]'s son [Emmanuel] wanted to tag along too.
query: ('Marian', 'Clarence')
clean_story: [Marian] and her brother [Alan] wanted to go to the cinema. [Alan]'s son [Emmanuel] wanted to tag along too. [Emmanuel] and his brother [Clarence] went out for lunch. [Emmanuel] had a burger, and [Clarence] had a chicken sandwich.
proof_state: [{('Marian', 'nephew', 'Clarence'): [('Marian', 'brother', 'Alan'), ('Alan', 'son', 'Clarence')]}, {('Alan', 'son', 'Clarence'): [('Alan', 'son', 'Emmanuel'), ('Emmanuel', 'brother', 'Clarence')]}]