story: [Gabrielle]'s son, [Christopher], has a son named [Jose].
query: ('Gabrielle', 'Jose')
clean_story: [Gabrielle]'s son, [Christopher], has a son named [Jose].
proof_state: [{('Gabrielle', 'grandson', 'Jose'): [('Gabrielle', 'son', 'Christopher'), ('Christopher', 'son', 'Jose')]}]