story: [Emmanuel] and his brother [Clarence] played at jacks. [Alan] is so proud of his son. [Emmanuel] is the son's name. [Alan] is the great brother of [James].
query: ('James', 'Clarence')
clean_story: [Alan] is the great brother of [James]. [Alan] is so proud of his son. [Emmanuel] is the son's name. [Emmanuel] and his brother [Clarence] played at jacks.
proof_state: [{('James', 'nephew', 'Clarence'): [('James', 'brother', 'Alan'), ('Alan', 'son', 'Clarence')]}, {('Alan', 'son', 'Clarence'): [('Alan', 'son', 'Emmanuel'), ('Emmanuel', 'brother', 'Clarence')]}]