story: [Jason] has a lovely daughter who plays piano named [Myrna]. [Jason] also has a son [James] who loves to play sports.
query: ('James', 'Myrna')
clean_story: [Jason] has a lovely daughter who plays piano named [Myrna]. [Jason] also has a son [James] who loves to play sports.
proof_state: [{('James', 'sister', 'Myrna'): [('James', 'father', 'Jason'), ('Jason', 'daughter', 'Myrna')]}]