Question: last ruler of the aztec empire in mexico
[{'answer': 'Cuauhtémoc', 'provenance': [{'wikipedia_id': '7478', 'title': 'Cuauhtémoc', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7478', 'title': 'Cuauhtémoc', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 448, 'bleu_score': 0.8029466159687201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13286950888570564691}, 'section': 'Section::::Abstract.'}]}]