Question: how many episodes in midsomer murders season 19
[{'answer': '6', 'provenance': [{'wikipedia_id': '9124916', 'title': 'List of Midsomer Murders episodes', 'start_paragraph_id': 2, 'start_character': 197, 'end_paragraph_id': 2, 'end_character': 198, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]