Question: Alain Dorval  is best known as the official dub-over artist of an American actor and filmmaker well known for his Hollywood action roles, including what title character of the "Rocky" series?
{'answer': 'Rocky Balboa', 'supporting_facts': [['Alain Dorval', 0], ['Alain Dorval', 1], ['Sylvester Stallone', 0], ['Sylvester Stallone', 1]]}