Question: when was capital punishment last used in the uk
[{'answer': '1964', 'provenance': [{'wikipedia_id': '275150', 'title': 'Capital punishment in the United Kingdom', 'start_paragraph_id': 1, 'start_character': 189, 'end_paragraph_id': 1, 'end_character': 193, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '275150', 'title': 'Capital punishment in the United Kingdom', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 670, 'bleu_score': 0.9823771291847391, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7893302001915439219}, 'section': 'Section::::Abstract.'}]}]