Question: where was the aztec civilization located on a map
[{'answer': 'central Mexico', 'provenance': [{'wikipedia_id': '53198', 'title': 'Aztecs', 'start_paragraph_id': 1, 'start_character': 61, 'end_paragraph_id': 1, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]