Question: how many superbowl rings does the pittsburgh steelers have
[{'answer': '6', 'provenance': [{'wikipedia_id': '23338', 'title': 'Pittsburgh Steelers', 'start_paragraph_id': 2, 'start_character': 317, 'end_paragraph_id': 2, 'end_character': 318, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]