Question: when did canada become a completely independent country
[{'answer': 'April 17 , 1982', 'provenance': [{'wikipedia_id': '285437', 'title': 'Canada Act 1982', 'start_paragraph_id': 13, 'start_character': 92, 'end_paragraph_id': 13, 'end_character': 109, 'bleu_score': 1.0, 'section': 'Section::::Proclamation by the Queen of Canada.\n'}]}, {'provenance': [{'wikipedia_id': '285437', 'title': 'Canada Act 1982', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 483, 'bleu_score': 0.9766041382465441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14392731883981124642}, 'section': 'Section::::Proclamation by the Queen of Canada.\n'}]}]