Question: when did they come out with disposable diapers
[{'answer': '1946', 'provenance': [{'wikipedia_id': '54205', 'title': 'Diaper', 'start_paragraph_id': 14, 'start_character': 3, 'end_paragraph_id': 14, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::History.:Development.\n'}]}, {'provenance': [{'wikipedia_id': '54205', 'title': 'Diaper', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 434, 'bleu_score': 0.75869522533775, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6369918056247939361}, 'section': 'Section::::Types.:Disposable.\n'}]}]