Question: how many issues of civil war 2 are there
[{'answer': '8', 'provenance': [{'wikipedia_id': '22711879', 'title': 'Civil War II', 'start_paragraph_id': 12, 'start_character': 302, 'end_paragraph_id': 12, 'end_character': 303, 'bleu_score': 1.0, 'section': 'Section::::Publication history.\n'}]}]