Question: Who was an  intellectual and diplomat, he held various academic posts and served as a Goodwill Ambassador for UNICEF and President of the World Federalist Movement, Billy Bob Thornton or Peter Ustinov?
{'answer': 'Sir Peter Ustinov', 'supporting_facts': [['Billy Bob Thornton', 0], ['Peter Ustinov', 0], ['Peter Ustinov', 2]]}