story: [Myrna] was changing her daughter [Guillermina]'s diaper when her mother [Gabrielle] called.
query: ('Gabrielle', 'Guillermina')
clean_story: [Myrna] was changing her daughter [Guillermina]'s diaper when her mother [Gabrielle] called.
proof_state: [{('Gabrielle', 'granddaughter', 'Guillermina'): [('Gabrielle', 'daughter', 'Myrna'), ('Myrna', 'daughter', 'Guillermina')]}]