Question: when does season 4 of the ranch on netflix come out
[{'answer': 'December 15 , 2017', 'provenance': [{'wikipedia_id': '47048173', 'title': 'The Ranch (TV series)', 'start_paragraph_id': 2, 'start_character': 513, 'end_paragraph_id': 2, 'end_character': 531, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]