Question: when was the book the lion the witch and the wardrobe published
[{'answer': '1950', 'provenance': [{'wikipedia_id': '242130', 'title': 'The Lion, the Witch and the Wardrobe', 'start_paragraph_id': 1, 'start_character': 115, 'end_paragraph_id': 1, 'end_character': 119, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '242130', 'title': 'The Lion, the Witch and the Wardrobe', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 568, 'bleu_score': 0.6128598442121721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4329385428715519650}, 'section': 'Section::::Abstract.'}]}]