Question: who has the most super bowls in nfl history
[{'answer': 'The Pittsburgh Steelers', 'provenance': [{'wikipedia_id': '2145410', 'title': 'List of Super Bowl champions', 'start_paragraph_id': 3, 'start_character': 762, 'end_paragraph_id': 3, 'end_character': 785, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Pittsburgh Steelers', 'provenance': [{'wikipedia_id': '2145410', 'title': 'List of Super Bowl champions', 'start_paragraph_id': 3, 'start_character': 32, 'end_paragraph_id': 3, 'end_character': 51, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2145410', 'title': 'List of Super Bowl champions', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 1830, 'bleu_score': 0.6855949751155821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6148767542591558869}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2145410', 'title': 'List of Super Bowl champions', 'section': 'Section::::Abstract.', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['The 1972 Dolphins capped off the only perfect season in NFL history with their victory in Super Bowl VII. The only team with multiple Super Bowl appearances and no losses is the Baltimore Ravens, who in winning Super Bowl XLVII defeated and replaced the 49ers in that position.', 'Pittsburgh Steelers', 'The New England Patriots () and Pittsburgh Steelers () have won the most Super Bowls with six championships, while the Dallas Cowboys () and the San Francisco 49ers () have five wins.']}}]}, {'provenance': [{'wikipedia_id': '21211', 'title': 'National Football League', 'section': 'Section::::Abstract.', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['The team with the most NFL championships is the Green Bay Packers with thirteen (nine NFL titles before the Super Bowl era, and four Super Bowl championships afterwards); the teams with the most Super Bowl championships are the New England Patriots and Pittsburgh Steelers, each with six. The current NFL champions are the New England Patriots, who defeated the Los Angeles Rams in Super Bowl LIII for their sixth Super Bowl championship.', 'Pittsburgh Steelers', 'The team with the most NFL championships is the Green Bay Packers with thirteen (nine NFL titles before the Super Bowl era, and four Super Bowl championships afterwards); the teams with the most Super Bowl championships are the New England Patriots and Pittsburgh Steelers, each with six. The current NFL champions are the New England Patriots, who defeated the Los Angeles Rams in Super Bowl LIII for their sixth Super Bowl championship.\rhighlight sentence(s) containing evidence, not only the answer']}}]}]