Question: when was smokey the bear changed to smokey bear
[{'answer': '1952', 'provenance': [{'wikipedia_id': '329797', 'title': 'Smokey Bear', 'start_paragraph_id': 3, 'start_character': 88, 'end_paragraph_id': 3, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '329797', 'title': 'Smokey Bear', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 129, 'bleu_score': 0.7886336751695251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13416698677998477}, 'section': 'Section::::Abstract.'}]}]