Question: who is broadcasting the super bowl this year
[{'answer': 'NBC', 'provenance': [{'wikipedia_id': '3117784', 'title': 'List of Super Bowl broadcasters', 'start_paragraph_id': 2, 'start_character': 58, 'end_paragraph_id': 2, 'end_character': 61, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]