Question: who appeared on the american $20 bill in 1875
[{'answer': 'Alexander Hamilton', 'provenance': [{'wikipedia_id': '477336', 'title': 'United States twenty-dollar bill', 'start_paragraph_id': 37, 'start_character': 147, 'end_paragraph_id': 37, 'end_character': 165, 'bleu_score': 1.0, 'section': "Section::::Proposal for a woman's portrait.\n"}]}]