Question: when did the first ikea store open in the uk
[{'answer': '( 1987 )', 'provenance': [{'wikipedia_id': '14751', 'title': 'IKEA', 'start_paragraph_id': 8, 'start_character': 436, 'end_paragraph_id': 8, 'end_character': 443, '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': 6192976020731044832}, 'section': 'Section::::History.\n'}]}]