story: [Melissa] invited her sisters, [Nancy] and [Minnie], to a party. [James]'s sister [Melissa] asked him for some help planting her garden.
query: ('Minnie', 'Nancy')
clean_story: [Melissa] invited her sisters, [Nancy] and [Minnie], to a party.
proof_state: [{('Minnie', 'sister', 'Nancy'): [('Minnie', 'sister', 'Melissa'), ('Melissa', 'sister', 'Nancy')]}]