story: [Annette] mows the lawn for her sister, [Vanessa] and her grandfather, [Jason].
query: ('Jason', 'Vanessa')
clean_story: [Annette] mows the lawn for her sister, [Vanessa] and her grandfather, [Jason].
proof_state: [{('Jason', 'granddaughter', 'Vanessa'): [('Jason', 'granddaughter', 'Annette'), ('Annette', 'sister', 'Vanessa')]}]