Question: who plays sauron in lord of the rings
[{'answer': 'Sir Christopher Frank Carandini Lee', 'provenance': [{'wikipedia_id': '53494', 'title': 'Christopher Lee', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 35, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53494', 'title': 'Christopher Lee', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 586, 'bleu_score': 0.7564183843051541, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 97362218046483462}, 'section': 'Section::::Abstract.'}]}]