Question: american horror story series 7 how many episodes
[{'answer': '11', 'provenance': [{'wikipedia_id': '33178663', 'title': 'List of American Horror Story episodes', 'start_paragraph_id': 1, 'start_character': 159, 'end_paragraph_id': 1, 'end_character': 161, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]