Question: when was chestnuts roasting on an open fire written
[{'answer': '1945', 'provenance': [{'wikipedia_id': '2506816', 'title': 'The Christmas Song', 'start_paragraph_id': 1, 'start_character': 179, 'end_paragraph_id': 1, 'end_character': 183, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2506816', 'title': 'The Christmas Song', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 213, 'bleu_score': 0.871393365020642, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18175054852100185302}, 'section': 'Section::::Abstract.'}]}]