story: [Jason] went to his daughter [Alma]'s house, to have lunch with her son [Russell].
query: ('Russell', 'Jason')
clean_story: [Jason] went to his daughter [Alma]'s house, to have lunch with her son [Russell].
proof_state: [{('Russell', 'grandfather', 'Jason'): [('Russell', 'mother', 'Alma'), ('Alma', 'father', 'Jason')]}]