Question: how many episodes are in the final season of the originals
[{'answer': '13', 'provenance': [{'wikipedia_id': '40780004', 'title': 'List of The Originals episodes', 'start_paragraph_id': 1, 'start_character': 310, 'end_paragraph_id': 1, 'end_character': 312, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]