Question: who played the mandarin in iron man 3
[{'answer': 'Ben Kingsley', 'provenance': [{'wikipedia_id': '22144990', 'title': 'Iron Man 3', 'start_paragraph_id': 1, 'start_character': 558, 'end_paragraph_id': 1, 'end_character': 570, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22144990', 'title': 'Iron Man 3', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 2031, 'bleu_score': 0.9794656401812901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17710230972437152889}, 'section': 'Section::::Cast.\n'}]}]