Question: who appeared on the 20 dollar bill in 1865
[{'answer': 'Pocahontas', 'provenance': [{'wikipedia_id': '477336', 'title': 'United States twenty-dollar bill', 'start_paragraph_id': 7, 'start_character': 74, 'end_paragraph_id': 7, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::Pre–Federal Reserve history.\n'}]}, {'answer': 'John Rolfe', 'provenance': [{'wikipedia_id': '477336', 'title': 'United States twenty-dollar bill', 'start_paragraph_id': 7, 'start_character': 99, 'end_paragraph_id': 7, 'end_character': 109, 'bleu_score': 1.0, 'section': 'Section::::Pre–Federal Reserve history.\n'}]}]