Question: when does season 4 of brooklyn 99 come out
[{'answer': 'September 20 , 2016', 'provenance': [{'wikipedia_id': '54292722', 'title': 'Brooklyn Nine-Nine (season 4)', 'start_paragraph_id': 1, 'start_character': 74, 'end_paragraph_id': 1, 'end_character': 95, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '54292722', 'title': 'Brooklyn Nine-Nine (season 4)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 139, 'bleu_score': 0.9181891462193901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8454933578298823648}, 'section': 'Section::::Abstract.'}]}]