Question: how many episodes of the originals season 5 is there
[{'answer': '8', 'provenance': [{'wikipedia_id': '55819283', 'title': 'The Originals (season 5)', 'start_paragraph_id': 1, 'start_character': 411, 'end_paragraph_id': 1, 'end_character': 412, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]