Question: when was back to the future 2 released
[{'answer': 'November 22 , 1989', 'provenance': [{'wikipedia_id': '213270', 'title': 'Back to the Future Part II', 'start_paragraph_id': 58, 'start_character': 46, 'end_paragraph_id': 58, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Soundtrack.\n'}]}]