Question: is bank of america a commercial bank or credit union
[{'answer': 'commercial', 'provenance': [{'wikipedia_id': '347756', 'title': 'Bank of America', 'start_paragraph_id': 1, 'start_character': 629, 'end_paragraph_id': 1, 'end_character': 639, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '347756', 'title': 'Bank of America', 'start_paragraph_id': 37, 'start_character': 0, 'end_paragraph_id': 37, 'end_character': 310, 'bleu_score': 0.9603762111511761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11565404669093247383}, 'section': 'Section::::History.:2001 to present.\n'}]}]