Question: when does the challenge dirty 30 come out
[{'answer': 'July 18 , 2017', 'provenance': [{'wikipedia_id': '54030026', 'title': 'The Challenge XXX: Dirty 30', 'start_paragraph_id': 2, 'start_character': 69, 'end_paragraph_id': 2, 'end_character': 83, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '54030026', 'title': 'The Challenge XXX: Dirty 30', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 82, 'bleu_score': 0.8781879837907131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13202193443029212139}, 'section': 'Section::::Abstract.'}]}]