story: [Jason] was shopping for a new dress for his daughter [Myrna]. [Myrna] and her daughter [Lucille] went out to dinner.
query: ('Jason', 'Lucille')
clean_story: [Jason] was shopping for a new dress for his daughter [Myrna]. [Myrna] and her daughter [Lucille] went out to dinner.
proof_state: [{('Jason', 'granddaughter', 'Lucille'): [('Jason', 'daughter', 'Myrna'), ('Myrna', 'daughter', 'Lucille')]}]