Question: what nfl team won the first two superbowls
[{'answer': 'Green Bay Packers', 'provenance': [{'wikipedia_id': '2145410', 'title': 'List of Super Bowl champions', 'start_paragraph_id': 3, 'start_character': 699, 'end_paragraph_id': 3, 'end_character': 716, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]