Question: who's singing help draw thousands dwight moody's revivals
[{'answer': 'Ira D. Sankey', 'provenance': [{'wikipedia_id': '8459', 'title': 'Dwight L. Moody', 'start_paragraph_id': 11, 'start_character': 101, 'end_paragraph_id': 11, 'end_character': 114, 'bleu_score': 1.0, 'section': 'Section::::Chicago and the postwar years.\n'}]}]