Question: how many seasons of storage wars are there
[{'answer': '10', 'provenance': [{'wikipedia_id': '29898672', 'title': 'Storage Wars', 'start_paragraph_id': 1, 'start_character': 132, 'end_paragraph_id': 1, 'end_character': 134, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]