story: [Alan] went to visit his brother, [James], and brought along his son, [Carlos], with him. [Carlos]'s brother, [Clarence], did n't join them as he was sick and decided to stay home instead.
query: ('James', 'Clarence')
clean_story: [Alan] went to visit his brother, [James], and brought along his son, [Carlos], with him. [Carlos]'s brother, [Clarence], did n't join them as he was sick and decided to stay home instead.
proof_state: [{('James', 'nephew', 'Clarence'): [('James', 'brother', 'Alan'), ('Alan', 'son', 'Clarence')]}, {('Alan', 'son', 'Clarence'): [('Alan', 'son', 'Carlos'), ('Carlos', 'brother', 'Clarence')]}]