Question: when was the song baby it's cold outside written
[{'answer': '1944', 'provenance': [{'wikipedia_id': '3212794', 'title': "Baby, It's Cold Outside", 'start_paragraph_id': 1, 'start_character': 95, 'end_paragraph_id': 1, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]