Question: when did the ten shilling note go out of circulation
[{'answer': '22 November 1970', 'provenance': [{'wikipedia_id': '50408344', 'title': 'Bank of England 10s note', 'start_paragraph_id': 5, 'start_character': 1020, 'end_paragraph_id': 5, 'end_character': 1036, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '50408344', 'title': 'Bank of England 10s note', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1162, 'bleu_score': 0.9904531874107041, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6405165290014281204}, 'section': 'Section::::History.\n'}]}]