story: [James] and his brother [Otto] went to the boxing match. [Melissa] was upset her brother [James] did n't invite her. [Nancy] and her brother [James] went to the basketball game and had a great time.
query: ('Melissa', 'Otto')
clean_story: [James] and his brother [Otto] went to the boxing match. [Melissa] was upset her brother [James] did n't invite her.
proof_state: [{('Melissa', 'brother', 'Otto'): [('Melissa', 'brother', 'James'), ('James', 'brother', 'Otto')]}]