Question: when did the queen last come to australia
[{'answer': 'October 2011', 'provenance': [{'wikipedia_id': '8612991', 'title': 'Royal visits to Australia', 'start_paragraph_id': 57, 'start_character': 3, 'end_paragraph_id': 57, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::21st century.:2010s.\n'}]}, {'provenance': [{'wikipedia_id': '8612991', 'title': 'Royal visits to Australia', 'start_paragraph_id': 57, 'start_character': 11, 'end_paragraph_id': 57, 'end_character': 383, 'bleu_score': 0.8831790804753991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9979853407545999305}, 'section': 'Section::::21st century.:2010s.\n'}]}]