Question: what's the capital of mexico in spanish
[{'answer': 'Ciudad de México', 'provenance': [{'wikipedia_id': '18987', 'title': 'Mexico City', 'start_paragraph_id': 77, 'start_character': 166, 'end_paragraph_id': 77, 'end_character': 182, 'bleu_score': 1.0, 'section': 'Section::::Politics.:Political structure.\n'}]}, {'provenance': [{'wikipedia_id': '18987', 'title': 'Mexico City', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 361, 'bleu_score': 0.6212202854365131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14554422872689863970}, 'section': 'Section::::Abstract.'}]}]