Question: when did when harry met sally come out
[{'answer': 'July 21 , 1989', 'provenance': [{'wikipedia_id': '33270', 'title': 'When Harry Met Sally...', 'start_paragraph_id': 39, 'start_character': 512, 'end_paragraph_id': 39, 'end_character': 526, 'bleu_score': 1.0, 'section': 'Section::::Reception.:Box office.\n'}]}]