story: [Christopher] and his brother [James] decided to bake muffins for his daughter [Anna]'s first day of school.
query: ('James', 'Anna')
clean_story: [Christopher] and his brother [James] decided to bake muffins for his daughter [Anna]'s first day of school.
proof_state: [{('James', 'niece', 'Anna'): [('James', 'brother', 'Christopher'), ('Christopher', 'daughter', 'Anna')]}]