Question: when was the first dollar general store opened
[{'answer': '1955', 'provenance': [{'wikipedia_id': '367810', 'title': 'Dollar General', 'start_paragraph_id': 6, 'start_character': 266, 'end_paragraph_id': 6, 'end_character': 270, 'bleu_score': 1.0, 'section': 'Section::::History.:J.L. Turner and Son: 1939–1964.\n'}]}, {'provenance': [{'wikipedia_id': '367810', 'title': 'Dollar General', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 584, 'bleu_score': 0.980097014099621, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6468629824914176194}, 'section': 'Section::::History.:J.L. Turner and Son: 1939–1964.\n'}]}]