Question: how many episodes in the final season of the leftovers
[{'answer': '8', 'provenance': [{'wikipedia_id': '39715412', 'title': 'The Leftovers (TV series)', 'start_paragraph_id': 2, 'start_character': 604, 'end_paragraph_id': 2, 'end_character': 605, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]