story: [Jennifer] went on a vacation with her brother [Chad]. [Jennifer] and [Jason]
query: ('Jason', 'Chad')
clean_story: [Jennifer] and [Jason] [Jennifer] went on a vacation with her brother [Chad].
proof_state: [{('Jason', 'grandson', 'Chad'): [('Jason', 'granddaughter', 'Jennifer'), ('Jennifer', 'brother', 'Chad')]}]