Question: when did season 12 of criminal minds start
[{'answer': 'September 28 , 2016', 'provenance': [{'wikipedia_id': '49783181', 'title': 'Criminal Minds (season 12)', 'start_paragraph_id': 37, 'start_character': 123, 'end_paragraph_id': 37, 'end_character': 142, 'bleu_score': 1.0, 'section': 'Section::::Production.:Development.\n'}]}, {'provenance': [{'wikipedia_id': '49783181', 'title': 'Criminal Minds (season 12)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 172, 'bleu_score': 0.9402297675816911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17151456258579615521}, 'section': 'Section::::Abstract.'}]}]