story: [William] looks to his loving mother [Myrna] for guidance in with his math homework. [William] and his sister [Anna] stood in line at the fair.
query: ('Anna', 'Myrna')
clean_story: [William] and his sister [Anna] stood in line at the fair. [William] looks to his loving mother [Myrna] for guidance in with his math homework.
proof_state: [{('Anna', 'mother', 'Myrna'): [('Anna', 'brother', 'William'), ('William', 'mother', 'Myrna')]}]