Question: when was the last person executed in canada
[{'answer': 'December 11 , 1962', 'provenance': [{'wikipedia_id': '794311', 'title': 'Capital punishment in Canada', 'start_paragraph_id': 18, 'start_character': 132, 'end_paragraph_id': 18, 'end_character': 150, 'bleu_score': 1.0, 'section': 'Section::::History.:Last executions in Canada.\n'}]}, {'provenance': [{'wikipedia_id': '794311', 'title': 'Capital punishment in Canada', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 600, 'bleu_score': 0.9815648442794911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18406986251752035212}, 'section': 'Section::::Abstract.'}]}]