story: [Michael] took his daughter [Annette] and son [Chad] to see a ball game.
query: ('Chad', 'Annette')
clean_story: [Michael] took his daughter [Annette] and son [Chad] to see a ball game.
proof_state: [{('Chad', 'sister', 'Annette'): [('Chad', 'father', 'Michael'), ('Michael', 'daughter', 'Annette')]}]