Question: when was the first year athletic trainers organized into a profession
[{'answer': '1991', 'provenance': [{'wikipedia_id': '1742971', 'title': 'Athletic training', 'start_paragraph_id': 1, 'start_character': 127, 'end_paragraph_id': 1, 'end_character': 131, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1742971', 'title': 'Athletic training', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 131, 'bleu_score': 0.9021315316859231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4728616305414196141}, 'section': 'Section::::Abstract.'}]}]