Question: when was the first ikea store opened in usa
[{'answer': '1985', 'provenance': [{'wikipedia_id': '14751', 'title': 'IKEA', 'start_paragraph_id': 8, 'start_character': 410, 'end_paragraph_id': 8, 'end_character': 414, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '14751', 'title': 'IKEA', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 797, 'bleu_score': 0.7734729879574721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5808017907862751551}, 'section': 'Section::::History.\n'}]}]