Question: who played the cigarette smoking man on the x-files
[{'answer': 'Canadian actor William B. Davis', 'provenance': [{'wikipedia_id': '574175', 'title': 'Cigarette Smoking Man', 'start_paragraph_id': 3, 'start_character': 32, 'end_paragraph_id': 3, 'end_character': 63, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '574175', 'title': 'Cigarette Smoking Man', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 389, 'bleu_score': 0.9684940092844061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15202285460759354838}, 'section': 'Section::::Abstract.'}]}]