Question: when did the current queen of england take the throne
[{'answer': 'February 1952', 'provenance': [{'wikipedia_id': '12153654', 'title': 'Elizabeth II', 'start_paragraph_id': 3, 'start_character': 24, 'end_paragraph_id': 3, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12153654', 'title': 'Elizabeth II', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 1186, 'bleu_score': 0.883475423298916, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2425988778296102663}, 'section': 'Section::::Abstract.'}]}]