Question: who played bass on walk on the wild side
[{'answer': 'Herbie Flowers', 'provenance': [{'wikipedia_id': '1809016', 'title': 'Walk on the Wild Side (Lou Reed song)', 'start_paragraph_id': 7, 'start_character': 29, 'end_paragraph_id': 7, 'end_character': 43, 'bleu_score': 1.0, 'section': 'Section::::Musicians.\n'}]}]