Question: who played the main character in fiddler on the roof
[{'answer': 'Chaim Topol', 'provenance': [{'wikipedia_id': '89444', 'title': 'Fiddler on the Roof', 'start_paragraph_id': 61, 'start_character': 995, 'end_paragraph_id': 61, 'end_character': 1006, 'bleu_score': 1.0, 'section': 'Section::::Productions.:Original productions.\n'}]}, {'provenance': [{'wikipedia_id': '89444', 'title': 'Fiddler on the Roof', 'start_paragraph_id': 87, 'start_character': 0, 'end_paragraph_id': 87, 'end_character': 677, 'bleu_score': 0.982060959997838, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9518472103608755901}, 'section': 'Section::::Film adaptation and recordings.\n'}]}]