story: [James] asked his sister [Myrna] if she could pick his son [Kevin] up from school today and she said yes.
query: ('Kevin', 'Myrna')
clean_story: [James] asked his sister [Myrna] if she could pick his son [Kevin] up from school today and she said yes.
proof_state: [{('Kevin', 'aunt', 'Myrna'): [('Kevin', 'father', 'James'), ('James', 'sister', 'Myrna')]}]