Question: where was the first aldi store in the us
[{'answer': 'Iowa', 'provenance': [{'wikipedia_id': '404177', 'title': 'Aldi', 'start_paragraph_id': 9, 'start_character': 267, 'end_paragraph_id': 9, 'end_character': 271, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '404177', 'title': 'Aldi', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 619, 'bleu_score': 0.9563334828258161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5040498876071515389}, 'section': 'Section::::History.\n'}]}]