Question: how many episodes of season 5 hell on wheels
[{'answer': '14', 'provenance': [{'wikipedia_id': '44413648', 'title': 'Hell on Wheels (season 5)', 'start_paragraph_id': 1, 'start_character': 114, 'end_paragraph_id': 1, 'end_character': 116, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]