story: [Lisa] likes taking her son [Erik] to school. [Peter] and his wife [Lisa] made promise to help their son [Stacy]. [Stacy]'s brother [George] is willing to help to.
query: ('Lisa', 'George')
clean_story: [Peter] and his wife [Lisa] made promise to help their son [Stacy]. [Stacy]'s brother [George] is willing to help to.
proof_state: [{('Lisa', 'son', 'George'): [('Lisa', 'son', 'Stacy'), ('Stacy', 'brother', 'George')]}, {('Stacy', 'brother', 'George'): [('Stacy', 'father', 'Peter'), ('Peter', 'son', 'George')]}]