Question: who wrote the song in my time of dying
[{'answer': 'Unknown', 'provenance': [{'wikipedia_id': '4374634', 'title': 'In My Time of Dying', 'start_paragraph_id': 3, 'start_character': 117, 'end_paragraph_id': 3, 'end_character': 124, 'bleu_score': 1.0, 'section': 'Section::::Early versions.\n'}]}, {'provenance': [{'wikipedia_id': '4374634', 'title': 'In My Time of Dying', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 687, 'bleu_score': 0.9420221838575401, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1271456760894104099}, 'section': 'Section::::Early versions.\n'}]}]