Question: who played lead guitar on last train to clarksville
[{'answer': 'Hollywood session musician Louie Shelton', 'provenance': [{'wikipedia_id': '5463753', 'title': 'Last Train to Clarksville', 'start_paragraph_id': 8, 'start_character': 272, 'end_paragraph_id': 8, 'end_character': 312, 'bleu_score': 1.0, 'section': 'Section::::Song.\n'}]}, {'provenance': [{'wikipedia_id': '5463753', 'title': 'Last Train to Clarksville', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 373, 'bleu_score': 0.524853354179579, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10911235055043638161}, 'section': 'Section::::Song.\n'}]}]