story: [Annette] took her brother, [Robert], to visit with his mother, [Alma].
query: ('Annette', 'Alma')
clean_story: [Annette] took her brother, [Robert], to visit with his mother, [Alma].
proof_state: [{('Annette', 'mother', 'Alma'): [('Annette', 'brother', 'Robert'), ('Robert', 'mother', 'Alma')]}]