Question: when does the 2017 youtube rewind come out
[{'answer': 'December 6 , 2017', 'provenance': [{'wikipedia_id': '42427933', 'title': 'YouTube Rewind', 'start_paragraph_id': 21, 'start_character': 3, 'end_paragraph_id': 21, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::History.:2017.\n'}]}, {'provenance': [{'wikipedia_id': '42427933', 'title': 'YouTube Rewind', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 323, 'bleu_score': 0.5430740304193981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9333457261521609097}, 'section': 'Section::::Abstract.'}]}]