Question: when did canada switch to driving on the right
[{'answer': '1920s', 'provenance': [{'wikipedia_id': '213380', 'title': 'Left- and right-hand traffic', 'start_paragraph_id': 13, 'start_character': 308, 'end_paragraph_id': 13, 'end_character': 313, 'bleu_score': 1.0, 'section': 'Section::::History.:Europe.\n'}]}]