Question: how many times did the broncos win the superbowl
[{'answer': '3', 'provenance': [{'wikipedia_id': '8122', 'title': 'Denver Broncos', 'start_paragraph_id': 2, 'start_character': 160, 'end_paragraph_id': 2, 'end_character': 161, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]