Question: when was the last time a canadian won the canadian open
[{'answer': '1954', 'provenance': [{'wikipedia_id': '1558809', 'title': 'Canadian Open (golf)', 'start_paragraph_id': 12, 'start_character': 227, 'end_paragraph_id': 12, 'end_character': 231, 'bleu_score': 1.0, 'section': 'Section::::Courses.\n'}]}, {'provenance': [{'wikipedia_id': '1558809', 'title': 'Canadian Open (golf)', 'start_paragraph_id': 29, 'start_character': 0, 'end_paragraph_id': 29, 'end_character': 1395, 'bleu_score': 0.918824894816972, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15127816961983153989}, 'section': 'Section::::History.:Canadian performances.\n'}]}]