story: [Chad] and his sister [Annette] were hoping for a snow day. [Chad] ca n't wait to see his grandfather [Jason] later this week.
query: ('Jason', 'Annette')
clean_story: [Chad] ca n't wait to see his grandfather [Jason] later this week. [Chad] and his sister [Annette] were hoping for a snow day.
proof_state: [{('Jason', 'granddaughter', 'Annette'): [('Jason', 'grandson', 'Chad'), ('Chad', 'sister', 'Annette')]}]