Question: who was the last person publicly executed in the us
[{'answer': 'Rainey Bethea', 'provenance': [{'wikipedia_id': '2532934', 'title': 'Rainey Bethea', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2532934', 'title': 'Rainey Bethea', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 379, 'bleu_score': 0.838096810518774, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7740970753952117232}, 'section': 'Section::::Abstract.'}]}]