Question: when did great britain change to united kingdom
[{'answer': '1800', 'provenance': [{'wikipedia_id': '31723', 'title': 'History of the United Kingdom', 'start_paragraph_id': 1, 'start_character': 252, 'end_paragraph_id': 1, 'end_character': 256, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31723', 'title': 'History of the United Kingdom', 'start_paragraph_id': 1, 'start_character': 239, 'end_paragraph_id': 1, 'end_character': 343, 'bleu_score': 0.704959260832239, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8958564732918914570}, 'section': 'Section::::Abstract.'}]}]