story: [Nancy] was playing in the sandbox with her brother [Preston]. [Preston] found his daughter, [Stacy], drunk and alone on the bathroom floor. [James] and [Preston] are brothers. they like to spend time together
query: ('Nancy', 'James')
clean_story: [Nancy] was playing in the sandbox with her brother [Preston]. [James] and [Preston] are brothers. they like to spend time together
proof_state: [{('Nancy', 'brother', 'James'): [('Nancy', 'brother', 'Preston'), ('Preston', 'brother', 'James')]}]