Question: how many articles are in the uniform commercial code
[{'answer': '9', 'provenance': [{'wikipedia_id': '189563', 'title': 'Uniform Commercial Code', 'start_paragraph_id': 1, 'start_character': 55, 'end_paragraph_id': 1, 'end_character': 56, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]