Question: who sang the road goes on forever first
[{'answer': 'The Allman Brothers', 'provenance': [{'wikipedia_id': '13569240', 'title': 'The Road Goes On Forever', 'start_paragraph_id': 2, 'start_character': 40, 'end_paragraph_id': 2, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]