story: [Melissa] needed to go to the store. [Melissa] asked her sister [Nancy] for a ride. [Melissa] visited her son [Jaime] at college. [Melissa] borrowed some money from her brother [Otto].
query: ('Nancy', 'Otto')
clean_story: [Melissa] needed to go to the store. [Melissa] asked her sister [Nancy] for a ride. [Melissa] borrowed some money from her brother [Otto].
proof_state: [{('Nancy', 'brother', 'Otto'): [('Nancy', 'sister', 'Melissa'), ('Melissa', 'brother', 'Otto')]}]