Question: what percentage of the yankees do the steinbrenners own
[{'answer': '70 %', 'provenance': [{'wikipedia_id': '1855753', 'title': 'List of New York Yankees owners and executives', 'start_paragraph_id': 5, 'start_character': 532, 'end_paragraph_id': 5, 'end_character': 538, 'bleu_score': 1.0, 'section': 'Section::::Principal owners.\n'}]}, {'provenance': [{'wikipedia_id': '1855753', 'title': 'List of New York Yankees owners and executives', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 702, 'bleu_score': 0.983401048538667, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15122181625649819091}, 'section': 'Section::::Principal owners.\n'}]}]