Question: when does nathan for you season 4 come out
[{'answer': 'September 28 , 2017', 'provenance': [{'wikipedia_id': '38818262', 'title': 'Nathan for You', 'start_paragraph_id': 9, 'start_character': 759, 'end_paragraph_id': 9, 'end_character': 778, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]