Question: how many episodes are in season 4 of i am jazz
[{'answer': '8', 'provenance': [{'wikipedia_id': '47248199', 'title': 'I Am Jazz', 'start_paragraph_id': 2, 'start_character': 13, 'end_paragraph_id': 2, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]