Question: who wrote the song speed of the sound of loneliness
[{'answer': 'John Prine', 'provenance': [{'wikipedia_id': '51773799', 'title': 'Speed of the Sound of Loneliness', 'start_paragraph_id': 1, 'start_character': 56, 'end_paragraph_id': 1, 'end_character': 66, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51773799', 'title': 'Speed of the Sound of Loneliness', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 135, 'bleu_score': 0.9243880458347601, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13885937748070219541}, 'section': 'Section::::Abstract.'}]}]