Question: chess records was instrumental in the development of what style of blues
[{'answer': 'Chicago blues style', 'provenance': [{'wikipedia_id': '3352', 'title': 'Blues', 'start_paragraph_id': 55, 'start_character': 351, 'end_paragraph_id': 55, 'end_character': 370, 'bleu_score': 1.0, 'section': 'Section::::History.:1950s.\n'}]}, {'provenance': [{'wikipedia_id': '3352', 'title': 'Blues', 'start_paragraph_id': 55, 'start_character': 0, 'end_paragraph_id': 55, 'end_character': 872, 'bleu_score': 0.9689788960943181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3251576164762974223}, 'section': 'Section::::History.:1950s.\n'}]}]