Question: when did the first mcdonald's open in canada
[{'answer': '1967', 'provenance': [{'wikipedia_id': '6269265', 'title': "McDonald's Canada", 'start_paragraph_id': 4, 'start_character': 80, 'end_paragraph_id': 4, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '6269265', 'title': "McDonald's Canada", 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 738, 'bleu_score': 0.9831208473513011, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16088637648731106920}, 'section': 'Section::::History.\n'}]}]