Question: when was the war measures act been used in canada
[{'answer': 'the First World War', 'provenance': [{'wikipedia_id': '185222', 'title': 'War Measures Act', 'start_paragraph_id': 1, 'start_character': 302, 'end_paragraph_id': 1, 'end_character': 321, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'the Second World War', 'provenance': [{'wikipedia_id': '185222', 'title': 'War Measures Act', 'start_paragraph_id': 2, 'start_character': 210, 'end_paragraph_id': 2, 'end_character': 230, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'the 1970 October Crisis'}]