Question: who hold the record for most superbowl wins
[{'answer': 'Pittsburgh Steelers', 'provenance': [{'wikipedia_id': '9335777', 'title': 'List of Super Bowl records', 'start_paragraph_id': 463, 'start_character': 394, 'end_paragraph_id': 463, 'end_character': 413, 'bleu_score': 1.0, 'section': 'Section::::Non-occurrences.\n'}]}]