Question: when did they start putting strips in money
[{'answer': '1992', 'provenance': [{'wikipedia_id': '477336', 'title': 'United States twenty-dollar bill', 'start_paragraph_id': 30, 'start_character': 12, 'end_paragraph_id': 30, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Federal Reserve history.\n'}]}, {'provenance': [{'wikipedia_id': '477336', 'title': 'United States twenty-dollar bill', 'start_paragraph_id': 30, 'start_character': 0, 'end_paragraph_id': 30, 'end_character': 218, 'bleu_score': 0.8839836644191521, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12224624375917218111}, 'section': 'Section::::Federal Reserve history.\n'}]}]