Question: when were the 12 steps of aa written
[{'answer': '1939', 'provenance': [{'wikipedia_id': '31398', 'title': 'Twelve-step program', 'start_paragraph_id': 1, 'start_character': 288, 'end_paragraph_id': 1, 'end_character': 292, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31398', 'title': 'Twelve-step program', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 475, 'bleu_score': 0.9735040436119741, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13622716715899581278}, 'section': 'Section::::Abstract.'}]}]