Question: who played trapper john on trapper john md
[{'answer': 'Pernell Roberts', 'provenance': [{'wikipedia_id': '711295', 'title': 'Trapper John, M.D.', 'start_paragraph_id': 1, 'start_character': 106, 'end_paragraph_id': 1, 'end_character': 121, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '711295', 'title': 'Trapper John, M.D.', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 424, 'bleu_score': 0.8512539374491711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4065282635876802826}, 'section': 'Section::::Abstract.'}]}]