Question: what nfl team has been to the super bowl the most times
[{'answer': 'New England', 'provenance': [{'wikipedia_id': '2145410', 'title': 'List of Super Bowl champions', 'start_paragraph_id': 3, 'start_character': 4, 'end_paragraph_id': 3, 'end_character': 15, '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': 0.73273846046181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12163916693860040767}, 'section': 'Section::::Abstract.'}]}]