Question: who sings in the movie walk the line
[{'answer': 'Joaquin Phoenix', 'provenance': [{'wikipedia_id': '4240525', 'title': 'Walk the Line (soundtrack)', 'start_paragraph_id': 1, 'start_character': 208, 'end_paragraph_id': 1, 'end_character': 223, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Reese Witherspoon', 'provenance': [{'wikipedia_id': '4240525', 'title': 'Walk the Line (soundtrack)', 'start_paragraph_id': 1, 'start_character': 256, 'end_paragraph_id': 1, 'end_character': 273, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Waylon Payne', 'provenance': [{'wikipedia_id': '4240525', 'title': 'Walk the Line (soundtrack)', 'start_paragraph_id': 1, 'start_character': 309, 'end_paragraph_id': 1, 'end_character': 321, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Johnathan Rice', 'provenance': [{'wikipedia_id': '4240525', 'title': 'Walk the Line (soundtrack)', 'start_paragraph_id': 1, 'start_character': 356, 'end_paragraph_id': 1, 'end_character': 370, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Tyler Hilton', 'provenance': [{'wikipedia_id': '4240525', 'title': 'Walk the Line (soundtrack)', 'start_paragraph_id': 1, 'start_character': 402, 'end_paragraph_id': 1, 'end_character': 414, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Shooter Jennings', 'provenance': [{'wikipedia_id': '4240525', 'title': 'Walk the Line (soundtrack)', 'start_paragraph_id': 1, 'start_character': 451, 'end_paragraph_id': 1, 'end_character': 467, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4240525', 'title': 'Walk the Line (soundtrack)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 848, 'bleu_score': 0.985964042079227, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15066883897344170759}, 'section': 'Section::::Abstract.'}]}]