Question: what was the first all-sports talk radio station
[{'answer': 'Enterprise Radio Network', 'provenance': [{'wikipedia_id': '1942253', 'title': 'Sports radio', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1942253', 'title': 'Sports radio', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 424, 'bleu_score': 0.9731482306711111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11295811599282418887}, 'section': 'Section::::Abstract.'}]}]