Question: when did the queen became the queen of the uk
[{'answer': '6 February 1952', 'provenance': [{'wikipedia_id': '12153654', 'title': 'Elizabeth II', 'start_paragraph_id': 27, 'start_character': 429, 'end_paragraph_id': 27, 'end_character': 444, 'bleu_score': 1.0, 'section': 'Section::::Reign.:Accession and coronation.\n'}]}, {'provenance': [{'wikipedia_id': '12153654', 'title': 'Elizabeth II', 'start_paragraph_id': 27, 'start_character': 0, 'end_paragraph_id': 27, 'end_character': 952, 'bleu_score': 0.9877670085238551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17144694756622238221}, 'section': 'Section::::Reign.:Accession and coronation.\n'}]}]