Question: how many episodes of fawlty towers were made in total
[{'answer': '12', 'provenance': [{'wikipedia_id': '11673', 'title': 'Fawlty Towers', 'start_paragraph_id': 49, 'start_character': 189, 'end_paragraph_id': 49, 'end_character': 191, 'bleu_score': 1.0, 'section': 'Section::::Episodes.\n'}]}, {'provenance': [{'wikipedia_id': '11673', 'title': 'Fawlty Towers', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 455, 'bleu_score': 0.772581472286563, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4632033100907752195}, 'section': 'Section::::Abstract.'}]}]