Question: how many episodes of house of cards this season
[{'answer': '13', 'provenance': [{'wikipedia_id': '38257032', 'title': 'List of House of Cards episodes', 'start_paragraph_id': 1, 'start_character': 288, 'end_paragraph_id': 1, 'end_character': 290, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]