Question: when did we bought a zoo come out
[{'answer': 'December 23 , 2011', 'provenance': [{'wikipedia_id': '29373289', 'title': 'We Bought a Zoo', 'start_paragraph_id': 31, 'start_character': 329, 'end_paragraph_id': 31, 'end_character': 347, 'bleu_score': 1.0, 'section': 'Section::::Production.:Development.\n'}]}]