Question: who sang on the banks of the river
[{'answer': 'Johnny Preston', 'provenance': [{'wikipedia_id': '7283265', 'title': 'Running Bear', 'start_paragraph_id': 1, 'start_character': 109, 'end_paragraph_id': 1, 'end_character': 123, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7283265', 'title': 'Running Bear', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 766, 'bleu_score': 0.9853469949554711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9929457287080176638}, 'section': 'Section::::Abstract.'}]}]