Question: when did the first episode of supernatural come out
[{'answer': 'September 13 , 2005', 'provenance': [{'wikipedia_id': '25017933', 'title': 'Pilot (Supernatural)', 'start_paragraph_id': 1, 'start_character': 96, 'end_paragraph_id': 1, 'end_character': 115, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25017933', 'title': 'Pilot (Supernatural)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 496, 'bleu_score': 0.9735040436119741, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13243020298352662742}, 'section': 'Section::::Abstract.'}]}]