Question: who are the two teams that played in the superbowl last year
[{'answer': 'Philadelphia Eagles', 'provenance': [{'wikipedia_id': '2145410', 'title': 'List of Super Bowl champions', 'start_paragraph_id': 24, 'start_character': 444, 'end_paragraph_id': 24, 'end_character': 463, 'bleu_score': 1.0, 'section': 'Section::::Super Bowl championship (1966–present).:Consecutive wins.\n'}]}, {'answer': 'New England Patriots', 'provenance': [{'wikipedia_id': '2145410', 'title': 'List of Super Bowl champions', 'start_paragraph_id': 3, 'start_character': 4, 'end_paragraph_id': 3, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]