Question: who played the detective on the orient express
[{'answer': 'Kenneth Branagh', 'provenance': [{'wikipedia_id': '48645727', 'title': 'Murder on the Orient Express (2017 film)', 'start_paragraph_id': 1, 'start_character': 73, 'end_paragraph_id': 1, 'end_character': 88, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '48645727', 'title': 'Murder on the Orient Express (2017 film)', 'start_paragraph_id': 31, 'start_character': 0, 'end_paragraph_id': 31, 'end_character': 470, 'bleu_score': 0.9757530668325981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2498022213084348701}, 'section': 'Section::::Production.\n'}]}]