Question: when was the horse and his boy written
[{'answer': '1954', 'provenance': [{'wikipedia_id': '421106', 'title': 'The Horse and His Boy', 'start_paragraph_id': 1, 'start_character': 92, 'end_paragraph_id': 1, 'end_character': 96, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '421106', 'title': 'The Horse and His Boy', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 671, 'bleu_score': 0.934331563557489, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9175202832247182073}, 'section': 'Section::::Abstract.'}]}]