Question: how many volumes are in high school dxd
[{'answer': 'fourteen', 'provenance': [{'wikipedia_id': '36061806', 'title': 'List of High School DxD light novels', 'start_paragraph_id': 3, 'start_character': 574, 'end_paragraph_id': 3, 'end_character': 582, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '36061806', 'title': 'List of High School DxD light novels', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 194, 'bleu_score': 0.766593607095926, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 753383812011523949}, 'section': 'Section::::Abstract.'}]}]