Question: how many seasons of murdoch mysteries is there
[{'answer': '11', 'provenance': [{'wikipedia_id': '11567096', 'title': 'Murdoch Mysteries', 'start_paragraph_id': 11, 'start_character': 532, 'end_paragraph_id': 11, 'end_character': 534, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]