story: [Lucille] and her mother [Myrna] went shopping for [Lucille]'s husband [Alfred]'s birthday.
query: ('Alfred', 'Myrna')
clean_story: [Lucille] and her mother [Myrna] went shopping for [Lucille]'s husband [Alfred]'s birthday.
proof_state: [{('Alfred', 'mother-in-law', 'Myrna'): [('Alfred', 'wife', 'Lucille'), ('Lucille', 'mother', 'Myrna')]}]