Question: when did the movie dirty dancing come out
[{'answer': 'August 21 , 1987', 'provenance': [{'wikipedia_id': '680361', 'title': 'Dirty Dancing', 'start_paragraph_id': 3, 'start_character': 96, 'end_paragraph_id': 3, 'end_character': 112, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]