Question: when does guardians of the galazy 2 come out on dvd
[{'answer': 'August 22 , 2017'}, {'provenance': [{'wikipedia_id': '43402974', 'title': 'Guardians of the Galaxy Vol. 2', 'start_paragraph_id': 61, 'start_character': 0, 'end_paragraph_id': 61, 'end_character': 975, 'bleu_score': 0.8935623793010571, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16641934447935676434}, 'section': 'Section::::Release.:Home media.\n'}]}]