Question: who crowned himself as an emperor of france in 1804
[{'answer': 'Napoleon Bonaparte'}, {'provenance': [{'wikipedia_id': '631053', 'title': 'Emperor of the French', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 259, 'bleu_score': 0.6308628527133661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6208034337448996081}, 'section': 'Section::::Details.\n'}]}]