Question: when was and then there were none written
[{'answer': '1939', 'provenance': [{'wikipedia_id': '18949410', 'title': 'And Then There Were None', 'start_paragraph_id': 1, 'start_character': 226, 'end_paragraph_id': 1, 'end_character': 230, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18949410', 'title': 'And Then There Were None', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 314, 'bleu_score': 0.5544579272876711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8372019868629597496}, 'section': 'Section::::Abstract.'}]}]