Question: when did they start requiring a passport to go to canada
[{'answer': '10 November 2016', 'provenance': [{'wikipedia_id': '23674739', 'title': 'Visa policy of Canada', 'start_paragraph_id': 2, 'start_character': 175, 'end_paragraph_id': 2, 'end_character': 191, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23674739', 'title': 'Visa policy of Canada', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 247, 'bleu_score': 0.7810318032022531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3580762405769024864}, 'section': 'Section::::Abstract.'}]}]