story: [Peter] has a daughter names [Eustolia], she just turned 25. He also has a son, [Eustolia]'s brother [Stacy], he just turned 20. [Peter] ate dinner with his wife [Lisa]. [James] enjoys talking to his sister and her son. Her son is [Stacy].
query: ('Peter', 'James')
clean_story: [Peter] has a daughter names [Eustolia], she just turned 25. He also has a son, [Eustolia]'s brother [Stacy], he just turned 20. [James] enjoys talking to his sister and her son. Her son is [Stacy].
proof_state: [{('Peter', 'brother', 'James'): [('Peter', 'son', 'Stacy'), ('Stacy', 'uncle', 'James')]}, {('Peter', 'son', 'Stacy'): [('Peter', 'daughter', 'Eustolia'), ('Eustolia', 'brother', 'Stacy')]}]