story: [Erik] hated [Peter], so [Erik] ran away from home. [Erik] figured [Peter] did n't like being hid dad anyhow. [Erik] was playing checkers with his grandmother [Sandra], when he received a call from his sister [Eustolia]. [Eustolia] was mad at her brother [Stacy], because [Stacy] had called her fat.
query: ('Sandra', 'Stacy')
clean_story: [Erik] was playing checkers with his grandmother [Sandra], when he received a call from his sister [Eustolia]. [Eustolia] was mad at her brother [Stacy], because [Stacy] had called her fat.
proof_state: [{('Sandra', 'grandson', 'Stacy'): [('Sandra', 'granddaughter', 'Eustolia'), ('Eustolia', 'brother', 'Stacy')]}, {('Sandra', 'granddaughter', 'Eustolia'): [('Sandra', 'grandson', 'Erik'), ('Erik', 'sister', 'Eustolia')]}]