Question: how many episodes of iron fist on netflix
[{'answer': '13', 'provenance': [{'wikipedia_id': '45079755', 'title': 'Iron Fist (TV series)', 'start_paragraph_id': 2, 'start_character': 498, 'end_paragraph_id': 2, 'end_character': 500, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]