story: [Sarah] took her sister, [Patty], out to dinner for her birthday. [Kristen] spent a great day shopping with her daughter, [Patty]. [Edward] took his wife, [Kristen] on a picnic. [Kristen]'s daughter, [Sarah] stayed home.
clean_story: [Edward] took his wife, [Kristen] on a picnic. [Kristen]'s daughter, [Sarah] stayed home.
proof_state: [{('Edward', 'daughter', 'Sarah'): [('Edward', 'wife', 'Kristen'), ('Kristen', 'daughter', 'Sarah')]}]