Question: when was the first betty crocker cookbook published
[{'answer': '1930', 'provenance': [{'wikipedia_id': '408072', 'title': 'Betty Crocker', 'start_paragraph_id': 9, 'start_character': 5, 'end_paragraph_id': 9, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Cookbook publications.\n'}]}, {'provenance': [{'wikipedia_id': '408072', 'title': 'Betty Crocker', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 248, 'bleu_score': 0.9451524926983921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 662024401462980872}, 'section': 'Section::::Cookbook publications.\n'}]}]