Question: who plays voldemort in the harry potter series
[{'answer': 'Ralph Fiennes', 'provenance': [{'wikipedia_id': '45106', 'title': 'Lord Voldemort', 'start_paragraph_id': 32, 'start_character': 231, 'end_paragraph_id': 32, 'end_character': 244, 'bleu_score': 1.0, 'section': 'Section::::Portrayals within films.\n'}]}, {'answer': 'Frank Dillane', 'provenance': [{'wikipedia_id': '45106', 'title': 'Lord Voldemort', 'start_paragraph_id': 34, 'start_character': 338, 'end_paragraph_id': 34, 'end_character': 351, 'bleu_score': 1.0, 'section': 'Section::::Portrayals within films.\n'}]}, {'answer': 'Hero Fiennes - Tiffin', 'provenance': [{'wikipedia_id': '45106', 'title': 'Lord Voldemort', 'start_paragraph_id': 34, 'start_character': 18, 'end_paragraph_id': 34, 'end_character': 38, 'bleu_score': 1.0, 'section': 'Section::::Portrayals within films.\n'}]}, {'answer': 'Christian Coulson', 'provenance': [{'wikipedia_id': '45106', 'title': 'Lord Voldemort', 'start_paragraph_id': 31, 'start_character': 877, 'end_paragraph_id': 31, 'end_character': 894, 'bleu_score': 1.0, 'section': 'Section::::Portrayals within films.\n'}]}, {'answer': 'Ian Hart', 'provenance': [{'wikipedia_id': '45106', 'title': 'Lord Voldemort', 'start_paragraph_id': 31, 'start_character': 168, 'end_paragraph_id': 31, 'end_character': 176, 'bleu_score': 1.0, 'section': 'Section::::Portrayals within films.\n'}]}, {'answer': 'Richard Bremmer', 'provenance': [{'wikipedia_id': '45106', 'title': 'Lord Voldemort', 'start_paragraph_id': 31, 'start_character': 703, 'end_paragraph_id': 31, 'end_character': 718, 'bleu_score': 1.0, 'section': 'Section::::Portrayals within films.\n'}]}]