Question: when did el senor de los cielos start
[{'answer': 'April 15 , 2013'}, {'provenance': [{'wikipedia_id': '35818437', 'title': 'El Señor de los Cielos', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 528, 'bleu_score': 0.7190319070025181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9614967502309448200}, 'section': 'Section::::Abstract.'}]}]