Question: who wrote the song six days on the road
[{'answer': 'Earl Green', 'provenance': [{'wikipedia_id': '14807580', 'title': 'Six Days on the Road', 'start_paragraph_id': 1, 'start_character': 54, 'end_paragraph_id': 1, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Carl Montgomery', 'provenance': [{'wikipedia_id': '14807580', 'title': 'Six Days on the Road', 'start_paragraph_id': 1, 'start_character': 107, 'end_paragraph_id': 1, 'end_character': 122, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]