Question: how many nfl teams do not have cheerleaders
[{'answer': 'Buffalo Bills', 'provenance': [{'wikipedia_id': '9392753', 'title': 'National Football League Cheerleading', 'start_paragraph_id': 4, 'start_character': 426, 'end_paragraph_id': 4, 'end_character': 439, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Chicago Bears', 'provenance': [{'wikipedia_id': '9392753', 'title': 'National Football League Cheerleading', 'start_paragraph_id': 11, 'start_character': 70, 'end_paragraph_id': 11, 'end_character': 83, 'bleu_score': 1.0, 'section': 'Section::::Teams.:Teams without cheerleaders.\n'}]}, {'answer': 'Cleveland Browns', 'provenance': [{'wikipedia_id': '9392753', 'title': 'National Football League Cheerleading', 'start_paragraph_id': 11, 'start_character': 85, 'end_paragraph_id': 11, 'end_character': 101, 'bleu_score': 1.0, 'section': 'Section::::Teams.:Teams without cheerleaders.\n'}]}, {'answer': 'Green Bay Packers', 'provenance': [{'wikipedia_id': '9392753', 'title': 'National Football League Cheerleading', 'start_paragraph_id': 11, 'start_character': 103, 'end_paragraph_id': 11, 'end_character': 120, 'bleu_score': 1.0, 'section': 'Section::::Teams.:Teams without cheerleaders.\n'}]}, {'answer': 'New York Giants', 'provenance': [{'wikipedia_id': '9392753', 'title': 'National Football League Cheerleading', 'start_paragraph_id': 11, 'start_character': 122, 'end_paragraph_id': 11, 'end_character': 137, 'bleu_score': 1.0, 'section': 'Section::::Teams.:Teams without cheerleaders.\n'}]}, {'answer': 'Pittsburgh Steelers', 'provenance': [{'wikipedia_id': '9392753', 'title': 'National Football League Cheerleading', 'start_paragraph_id': 11, 'start_character': 147, 'end_paragraph_id': 11, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Teams.:Teams without cheerleaders.\n'}]}, {'provenance': [{'wikipedia_id': '9392753', 'title': 'National Football League Cheerleading', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 616, 'bleu_score': 0.959209640802376, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9626737848010587209}, 'section': 'Section::::Teams.:Teams without cheerleaders.\n'}]}]