Question: who is the owner of the baltimore ravens
[{'answer': 'Stephen J. Bisciotti', 'provenance': [{'wikipedia_id': '2224429', 'title': 'Steve Bisciotti', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]