story: [Annette] took her grandfather [Jason] and sister [Vanessa] on a hiking trip two weekends ago.
query: ('Jason', 'Vanessa')
clean_story: [Annette] took her grandfather [Jason] and sister [Vanessa] on a hiking trip two weekends ago.
proof_state: [{('Jason', 'granddaughter', 'Vanessa'): [('Jason', 'granddaughter', 'Annette'), ('Annette', 'sister', 'Vanessa')]}]