Question: what was dan aykroyd's name in trading places
[{'answer': 'Louis Winthorpe III', 'provenance': [{'wikipedia_id': '520990', 'title': 'Trading Places', 'start_paragraph_id': 5, 'start_character': 426, 'end_paragraph_id': 5, 'end_character': 445, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '520990', 'title': 'Trading Places', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 46, 'bleu_score': 0.6803749333171201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15348095356843922928}, 'section': 'Section::::Cast.\n'}]}]