Question: who has won the world's strongest man the most times
[{'answer': 'Mariusz Pudzianowski', 'provenance': [{'wikipedia_id': '944017', 'title': "World's Strongest Man", 'start_paragraph_id': 17, 'start_character': 66, 'end_paragraph_id': 17, 'end_character': 86, 'bleu_score': 1.0, 'section': 'Section::::History.:1990s–2000s.\n'}]}]