Question: where was the first casey's store built
[{'answer': 'in Boone , Iowa', 'provenance': [{'wikipedia_id': '1777970', 'title': "Casey's General Stores", 'start_paragraph_id': 3, 'start_character': 338, 'end_paragraph_id': 3, 'end_character': 353, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '1777970', 'title': "Casey's General Stores", 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 604, 'bleu_score': 0.9806740509884301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6670830614640327155}, 'section': 'Section::::History.\n'}]}]