Question: when was the last time the guillotine was used for execution
[{'answer': '10 September 1977', 'provenance': [{'wikipedia_id': '51272', 'title': 'Guillotine', 'start_paragraph_id': 3, 'start_character': 208, 'end_paragraph_id': 3, 'end_character': 225, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51272', 'title': 'Guillotine', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 225, 'bleu_score': 0.8338542560892601, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9052607765077019623}, 'section': 'Section::::Abstract.'}]}]