Question: when did the first kentucky fried chicken open
[{'answer': '1952', 'provenance': [{'wikipedia_id': '37404', 'title': 'KFC', 'start_paragraph_id': 2, 'start_character': 310, 'end_paragraph_id': 2, 'end_character': 314, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '37404', 'title': 'KFC', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 782, 'bleu_score': 0.962893778295358, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18121544607179863890}, 'section': 'Section::::Abstract.'}]}]