Question: when does the new adventure time come out
[{'answer': 'April 21 , 2017', 'provenance': [{'wikipedia_id': '51138662', 'title': 'Adventure Time (season 9)', 'start_paragraph_id': 20, 'start_character': 44, 'end_paragraph_id': 20, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Broadcast and reception.:Ratings.\n'}]}, {'answer': 'premiered on Cartoon Network on April 21 , 2017 .'}, {'provenance': [{'wikipedia_id': '51138662', 'title': 'Adventure Time (season 9)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12541349930503195800}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51138662', 'title': 'Adventure Time (season 9)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 548, 'bleu_score': 0.7066533349111821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12541349930503195800}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51138662', 'title': 'Adventure Time (season 9)', 'section': 'Section::::Broadcast and reception.:Ratings.\n', 'start_paragraph_id': 20, 'end_paragraph_id': 20, 'meta': {'evidence_span': ['April 21', 'The ninth season premiered on television on April 21, 2017,', 'The ninth season premiered on television on April 21, 2017, with "Orb", although the episode had been released on the Cartoon Network phone app a week earlier. Seen by 0.71\xa0million viewers, it had a 0.19 Nielsen rating in the 18- to 49-year-old demographic (Nielsen ratings are audience measurement systems for audience size and composition of television programming in the United States; the episode was seen by 0.19 percent of all households aged 18 to 49). This was a decrease from "Islands Part 8: The Light Cloud" (the season-eight finale, seen by one million viewers) and the previous season\'s premiere, "Broke His Crown" (seen by 1.13 million). "Elements" had a slight uptick in viewers, with each episode watched by just under one million people. However, season 8 was the first season to fail to hit the one-million viewer mark for any episode, which was a dramatic decrease from the often over two-million viewers the show regularly enjoyed up until season 6. The season finale, "Three Buckets", was watched by 0.85 million viewers and had a 0.23 Nielsen rating in the 18- to 49-year-old demographic (making it the series\' lowest-rated season finale).']}}]}]