Question: when did the new £20 notes come out
[{'answer': '2020', 'provenance': [{'wikipedia_id': '50353954', 'title': 'Bank of England £20 note', 'start_paragraph_id': 1, 'start_character': 322, 'end_paragraph_id': 1, 'end_character': 326, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '50353954', 'title': 'Bank of England £20 note', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 462, 'bleu_score': 0.9470882598755391, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15969047138368026262}, 'section': 'Section::::Abstract.'}]}]